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543 vulnerabilities found for nextcloud_server by nextcloud
FKIE_CVE-2025-64011
Vulnerability from fkie_nvd - Published: 2025-12-12 17:15 - Updated: 2025-12-19 15:47
Severity ?
Summary
Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such as text files or images, without prior sharing permissions.
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://drive.google.com/file/d/1eD3PN-u1caZYgGH96XHmJ7h_OBXEAHW4/view?usp=sharing | Exploit | |
| cve@mitre.org | https://gist.github.com/tarekramm/586dfe2d113fedfee6d71182570fc090 | Exploit, Third Party Advisory | |
| cve@mitre.org | https://nextcloud.com | Product |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | 30.0.0 |
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FKIE_CVE-2025-66547
Vulnerability from fkie_nvd - Published: 2025-12-05 17:16 - Updated: 2025-12-09 16:31
Severity ?
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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FKIE_CVE-2025-66552
Vulnerability from fkie_nvd - Published: 2025-12-05 17:16 - Updated: 2025-12-10 15:14
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed in Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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FKIE_CVE-2025-66510
Vulnerability from fkie_nvd - Published: 2025-12-05 17:16 - Updated: 2025-12-10 16:12
Severity ?
4.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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FKIE_CVE-2025-66512
Vulnerability from fkie_nvd - Published: 2025-12-05 17:16 - Updated: 2025-12-09 16:38
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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}
FKIE_CVE-2025-59788
Vulnerability from fkie_nvd - Published: 2025-12-04 19:16 - Updated: 2026-03-25 21:35
Severity ?
6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-p865-7j4r | Mitigation, Vendor Advisory | |
| cve@mitre.org | https://nextcloud.com | Product | |
| cve@mitre.org | https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/ | Exploit, Third Party Advisory |
Impacted products
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FKIE_CVE-2025-47794
Vulnerability from fkie_nvd - Published: 2025-05-16 15:15 - Updated: 2025-09-30 19:37
Severity ?
2.6 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server prior to 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1, an attacker on a multi-user system may read temporary files from Nextcloud running with a different user account, or run a symlink attack. Nextcloud Server versions 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1 fix the issue. No known workarounds are available.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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FKIE_CVE-2025-47793
Vulnerability from fkie_nvd - Published: 2025-05-16 15:15 - Updated: 2025-09-08 21:54
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team. In Nextcloud Server prior to 30.0.2, 29.0.9, and 28.0.1, Nextcloud Enterprise Server prior to 30.0.2 and 29.0.9, and Nextcloud Groupfolders app prior to 18.0.3, 17.0.5, and 16.0.11, the absence of quota checking on attachments allowed logged-in users to upload files exceeding the group folder quota. Nextcloud Server versions 30.0.2 and 29.0.9, Nextcloud Enterprise Server versions 30.0.2, 29.0.9, or 28.0.12, and Nextcloud Groupfolders app 18.0.3, 17.0.5, and 16.0.11 fix the issue. No known workarounds are available.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | group_folders | * | |
| nextcloud | group_folders | * | |
| nextcloud | group_folders | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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}
],
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FKIE_CVE-2025-47791
Vulnerability from fkie_nvd - Published: 2025-05-16 15:15 - Updated: 2025-09-19 17:41
Severity ?
4.3 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 28.0.13, 29.0.10, and 30.0.3 and Nextcloud Enterprise Server prior to 28.0.13, 29.0.10, and 30.0.3, a currently unused endpoint to verify a share recipient was not protected correctly, allowing to proxy requests to another server. The endpoint was removed in Nextcloud Server 28.0.13, 29.0.10, and 30.0.3 and Nextcloud Enterprise Server 28.0.13, 29.0.10, and 30.0.3. No known workarounds are available.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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FKIE_CVE-2025-47790
Vulnerability from fkie_nvd - Published: 2025-05-16 14:15 - Updated: 2025-09-30 19:59
Severity ?
Summary
Nextcloud Server is a self hosted personal cloud system. Nextcloud Server prior to 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server prior to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9, and 31.0.3 have a bug with session handling. The bug caused skipping the second factor confirmation after a successful login with the username and password when the server was configured with `remember_login_cookie_lifetime` set to `0`, once the session expired on the page to select the second factor and the page is reloaded. Nextcloud Server 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server is upgraded to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9 and 31.0.3 contain a patch. As a workaround, set the `remember_login_cookie_lifetime` in config.php to a value other than `0`, e.g. `900`. Beware that this is only a workaround for new sessions created after the configuration change. System administration can delete affected sessions.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * |
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},
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"lang": "es",
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}
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CVE-2025-64011 (GCVE-0-2025-64011)
Vulnerability from cvelistv5 – Published: 2025-12-12 00:00 – Updated: 2025-12-12 19:12
VLAI?
Summary
Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such as text files or images, without prior sharing permissions.
Severity ?
4.3 (Medium)
CWE
- n/a
Assigner
References
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CVE-2025-66552 (GCVE-0-2025-66552)
Vulnerability from cvelistv5 – Published: 2025-12-05 16:36 – Updated: 2025-12-05 18:25
VLAI?
Title
Nextcloud Server admin_audit does not log all actions on files in groupfolders
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed in Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1.
Severity ?
4.3 (Medium)
CWE
- CWE-778 - Insufficient Logging
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.1
Affected: < 31.0.9 |
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CVE-2025-66547 (GCVE-0-2025-66547)
Vulnerability from cvelistv5 – Published: 2025-12-05 16:32 – Updated: 2025-12-05 18:20
VLAI?
Title
Nextcloud Server users can modify tags on files that do not belong to them
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.
Severity ?
4.3 (Medium)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
< 31.0.1
|
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CVE-2025-66512 (GCVE-0-2025-66512)
Vulnerability from cvelistv5 – Published: 2025-12-05 16:22 – Updated: 2025-12-05 20:05
VLAI?
Title
Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page.
Severity ?
5.4 (Medium)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.3
Affected: < 31.0.12 |
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CVE-2025-66510 (GCVE-0-2025-66510)
Vulnerability from cvelistv5 – Published: 2025-12-05 16:18 – Updated: 2025-12-05 20:02
VLAI?
Title
Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.
Severity ?
4.5 (Medium)
CWE
- CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.1
Affected: < 31.0.10 |
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CVE-2025-59788 (GCVE-0-2025-59788)
Vulnerability from cvelistv5 – Published: 2025-12-04 00:00 – Updated: 2025-12-11 15:04
VLAI?
Summary
Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.
Severity ?
6.4 (Medium)
CWE
- CWE-749 - Exposed Dangerous Method or Function
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Nextcloud | Nextcloud |
Affected:
0 , < 22.2.10.33
(custom)
Affected: 23 , < 23.0.12.29 (custom) Affected: 24 , < 24.0.12.28 (custom) Affected: 25 , < 25.0.13.23 (custom) Affected: 26 , < 26.0.13.20 (custom) Affected: 27 , < 27.1.11.20 (custom) Affected: 28 , < 28.0.14.11 (custom) Affected: 29 , < 29.0.16.8 (custom) Affected: 30 , < 30.0.17 (custom) Affected: 31 , < 31.0.10 (custom) Affected: 32 , < 32.0.1 (custom) |
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CVE-2025-47794 (GCVE-0-2025-47794)
Vulnerability from cvelistv5 – Published: 2025-05-16 14:35 – Updated: 2025-05-16 14:48
VLAI?
Title
Nextcloud Server vulnerable to insecure temporary file creation, race with write access and permission
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server prior to 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1, an attacker on a multi-user system may read temporary files from Nextcloud running with a different user account, or run a symlink attack. Nextcloud Server versions 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1 fix the issue. No known workarounds are available.
Severity ?
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 26.0.0, < 26.0.13.13
Affected: >= 27.0.0, < 27.1.11.13 Affected: >= 28.0.0, < 28.0.14.4 Affected: >= 29.0.0, < 29.0.13 Affected: >= 30.0.0, < 30.0.7 Affected: >= 31.0.0, < 31.0.1 |
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CVE-2025-47793 (GCVE-0-2025-47793)
Vulnerability from cvelistv5 – Published: 2025-05-16 14:31 – Updated: 2025-05-16 14:49
VLAI?
Title
Nextcloud Server and Groupfolders app vulnerable to bypass of group folder quota limit using attachment in text file
Summary
Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team. In Nextcloud Server prior to 30.0.2, 29.0.9, and 28.0.1, Nextcloud Enterprise Server prior to 30.0.2 and 29.0.9, and Nextcloud Groupfolders app prior to 18.0.3, 17.0.5, and 16.0.11, the absence of quota checking on attachments allowed logged-in users to upload files exceeding the group folder quota. Nextcloud Server versions 30.0.2 and 29.0.9, Nextcloud Enterprise Server versions 30.0.2, 29.0.9, or 28.0.12, and Nextcloud Groupfolders app 18.0.3, 17.0.5, and 16.0.11 fix the issue. No known workarounds are available.
Severity ?
4.3 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 30.0.0, < 30.0.2
Affected: >= 29.0.0, < 29.0.9 Affected: >= 28.0.0, < 28.0.12 Affected: >= 18.0.0, < 18.0.3 Affected: >= 17.0.0, < 17.0.5 Affected: >= 16.0.0, < 16.0.11 |
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CVE-2025-47791 (GCVE-0-2025-47791)
Vulnerability from cvelistv5 – Published: 2025-05-16 14:09 – Updated: 2025-05-16 14:50
VLAI?
Title
Nextcloud Server's test remote endpoint is not rate limited
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 28.0.13, 29.0.10, and 30.0.3 and Nextcloud Enterprise Server prior to 28.0.13, 29.0.10, and 30.0.3, a currently unused endpoint to verify a share recipient was not protected correctly, allowing to proxy requests to another server. The endpoint was removed in Nextcloud Server 28.0.13, 29.0.10, and 30.0.3 and Nextcloud Enterprise Server 28.0.13, 29.0.10, and 30.0.3. No known workarounds are available.
Severity ?
4.3 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 28.0.0, < 28.0.13
Affected: >= 29.0.0, < 29.0.10 Affected: >= 30.0.0, < 30.0.3 |
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CVE-2025-47790 (GCVE-0-2025-47790)
Vulnerability from cvelistv5 – Published: 2025-05-16 14:02 – Updated: 2025-05-16 14:51
VLAI?
Title
Nextcloud Server doesn't request second factor after session timeout
Summary
Nextcloud Server is a self hosted personal cloud system. Nextcloud Server prior to 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server prior to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9, and 31.0.3 have a bug with session handling. The bug caused skipping the second factor confirmation after a successful login with the username and password when the server was configured with `remember_login_cookie_lifetime` set to `0`, once the session expired on the page to select the second factor and the page is reloaded. Nextcloud Server 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server is upgraded to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9 and 31.0.3 contain a patch. As a workaround, set the `remember_login_cookie_lifetime` in config.php to a value other than `0`, e.g. `900`. Beware that this is only a workaround for new sessions created after the configuration change. System administration can delete affected sessions.
Severity ?
6.4 (Medium)
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 26.0.0, < 26.0.13.15
Affected: >= 27.0.0, < 27.1.11.15 Affected: >= 28.0.0, < 28.0.14.6 Affected: >= 29.0.0, < 29.0.15 Affected: >= 30.0.0, < 30.0.9 Affected: >= 31.0.0, < 31.0.3 |
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CVE-2025-64011 (GCVE-0-2025-64011)
Vulnerability from nvd – Published: 2025-12-12 00:00 – Updated: 2025-12-12 19:12
VLAI?
Summary
Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such as text files or images, without prior sharing permissions.
Severity ?
4.3 (Medium)
CWE
- n/a
Assigner
References
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CVE-2025-66552 (GCVE-0-2025-66552)
Vulnerability from nvd – Published: 2025-12-05 16:36 – Updated: 2025-12-05 18:25
VLAI?
Title
Nextcloud Server admin_audit does not log all actions on files in groupfolders
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed in Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1.
Severity ?
4.3 (Medium)
CWE
- CWE-778 - Insufficient Logging
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.1
Affected: < 31.0.9 |
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CVE-2025-66547 (GCVE-0-2025-66547)
Vulnerability from nvd – Published: 2025-12-05 16:32 – Updated: 2025-12-05 18:20
VLAI?
Title
Nextcloud Server users can modify tags on files that do not belong to them
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.
Severity ?
4.3 (Medium)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
< 31.0.1
|
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CVE-2025-66512 (GCVE-0-2025-66512)
Vulnerability from nvd – Published: 2025-12-05 16:22 – Updated: 2025-12-05 20:05
VLAI?
Title
Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page.
Severity ?
5.4 (Medium)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.3
Affected: < 31.0.12 |
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CVE-2025-66510 (GCVE-0-2025-66510)
Vulnerability from nvd – Published: 2025-12-05 16:18 – Updated: 2025-12-05 20:02
VLAI?
Title
Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.
Severity ?
4.5 (Medium)
CWE
- CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.1
Affected: < 31.0.10 |
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CVE-2025-59788 (GCVE-0-2025-59788)
Vulnerability from nvd – Published: 2025-12-04 00:00 – Updated: 2025-12-11 15:04
VLAI?
Summary
Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.
Severity ?
6.4 (Medium)
CWE
- CWE-749 - Exposed Dangerous Method or Function
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Nextcloud | Nextcloud |
Affected:
0 , < 22.2.10.33
(custom)
Affected: 23 , < 23.0.12.29 (custom) Affected: 24 , < 24.0.12.28 (custom) Affected: 25 , < 25.0.13.23 (custom) Affected: 26 , < 26.0.13.20 (custom) Affected: 27 , < 27.1.11.20 (custom) Affected: 28 , < 28.0.14.11 (custom) Affected: 29 , < 29.0.16.8 (custom) Affected: 30 , < 30.0.17 (custom) Affected: 31 , < 31.0.10 (custom) Affected: 32 , < 32.0.1 (custom) |
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CVE-2025-47794 (GCVE-0-2025-47794)
Vulnerability from nvd – Published: 2025-05-16 14:35 – Updated: 2025-05-16 14:48
VLAI?
Title
Nextcloud Server vulnerable to insecure temporary file creation, race with write access and permission
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server prior to 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1, an attacker on a multi-user system may read temporary files from Nextcloud running with a different user account, or run a symlink attack. Nextcloud Server versions 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1 fix the issue. No known workarounds are available.
Severity ?
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 26.0.0, < 26.0.13.13
Affected: >= 27.0.0, < 27.1.11.13 Affected: >= 28.0.0, < 28.0.14.4 Affected: >= 29.0.0, < 29.0.13 Affected: >= 30.0.0, < 30.0.7 Affected: >= 31.0.0, < 31.0.1 |
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CVE-2025-47793 (GCVE-0-2025-47793)
Vulnerability from nvd – Published: 2025-05-16 14:31 – Updated: 2025-05-16 14:49
VLAI?
Title
Nextcloud Server and Groupfolders app vulnerable to bypass of group folder quota limit using attachment in text file
Summary
Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team. In Nextcloud Server prior to 30.0.2, 29.0.9, and 28.0.1, Nextcloud Enterprise Server prior to 30.0.2 and 29.0.9, and Nextcloud Groupfolders app prior to 18.0.3, 17.0.5, and 16.0.11, the absence of quota checking on attachments allowed logged-in users to upload files exceeding the group folder quota. Nextcloud Server versions 30.0.2 and 29.0.9, Nextcloud Enterprise Server versions 30.0.2, 29.0.9, or 28.0.12, and Nextcloud Groupfolders app 18.0.3, 17.0.5, and 16.0.11 fix the issue. No known workarounds are available.
Severity ?
4.3 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 30.0.0, < 30.0.2
Affected: >= 29.0.0, < 29.0.9 Affected: >= 28.0.0, < 28.0.12 Affected: >= 18.0.0, < 18.0.3 Affected: >= 17.0.0, < 17.0.5 Affected: >= 16.0.0, < 16.0.11 |
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CVE-2025-47791 (GCVE-0-2025-47791)
Vulnerability from nvd – Published: 2025-05-16 14:09 – Updated: 2025-05-16 14:50
VLAI?
Title
Nextcloud Server's test remote endpoint is not rate limited
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 28.0.13, 29.0.10, and 30.0.3 and Nextcloud Enterprise Server prior to 28.0.13, 29.0.10, and 30.0.3, a currently unused endpoint to verify a share recipient was not protected correctly, allowing to proxy requests to another server. The endpoint was removed in Nextcloud Server 28.0.13, 29.0.10, and 30.0.3 and Nextcloud Enterprise Server 28.0.13, 29.0.10, and 30.0.3. No known workarounds are available.
Severity ?
4.3 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 28.0.0, < 28.0.13
Affected: >= 29.0.0, < 29.0.10 Affected: >= 30.0.0, < 30.0.3 |
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CVE-2025-47790 (GCVE-0-2025-47790)
Vulnerability from nvd – Published: 2025-05-16 14:02 – Updated: 2025-05-16 14:51
VLAI?
Title
Nextcloud Server doesn't request second factor after session timeout
Summary
Nextcloud Server is a self hosted personal cloud system. Nextcloud Server prior to 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server prior to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9, and 31.0.3 have a bug with session handling. The bug caused skipping the second factor confirmation after a successful login with the username and password when the server was configured with `remember_login_cookie_lifetime` set to `0`, once the session expired on the page to select the second factor and the page is reloaded. Nextcloud Server 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server is upgraded to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9 and 31.0.3 contain a patch. As a workaround, set the `remember_login_cookie_lifetime` in config.php to a value other than `0`, e.g. `900`. Beware that this is only a workaround for new sessions created after the configuration change. System administration can delete affected sessions.
Severity ?
6.4 (Medium)
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 26.0.0, < 26.0.13.15
Affected: >= 27.0.0, < 27.1.11.15 Affected: >= 28.0.0, < 28.0.14.6 Affected: >= 29.0.0, < 29.0.15 Affected: >= 30.0.0, < 30.0.9 Affected: >= 31.0.0, < 31.0.3 |
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