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64 vulnerabilities found for OpenCMS by Alkacon
CVE-2026-2736 (GCVE-0-2026-2736)
Vulnerability from nvd – Published: 2026-02-19 08:39 – Updated: 2026-03-09 08:54
VLAI
Title
Reflected Cross-Site Scripting (XSS) vulnerability in Alkacon's OpenCms
Summary
Reflected Cross-site Scripting (XSS) in Alkacon's OpenCms v18.0, which allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL containing the ‘q’ parameter in ‘/search/index.html’. This vulnerability can be exploited to steal sensitive user information such as session cookies, or to perform actions while impersonating the user.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Date Public
2026-02-19 08:00
Credits
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CVE-2026-2735 (GCVE-0-2026-2735)
Vulnerability from nvd – Published: 2026-02-19 08:38 – Updated: 2026-02-20 16:05
VLAI
Title
Stored Cross-Site Scripting (XSS) vulnerability in Alkacon's OpenCms
Summary
Stored Cross-Site Scripting (XSS) in Alkacon's OpenCms v18.0, which occurs when user input is not properly validated when sending a POST request to ‘/blog/new-article/org.opencms.ugc.CmsUgcEditService.gwt’ using the ‘text’ parameter.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Date Public
2026-02-19 08:00
Credits
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CVE-2024-42699 (GCVE-0-2024-42699)
Vulnerability from nvd – Published: 2025-04-21 00:00 – Updated: 2025-04-21 16:06
VLAI
Summary
Cross Site Scripting vulnerability in Create/Modify article function in Alkacon OpenCMS 17.0 allows remote attacker to inject javascript payload via image title sub-field in the image field
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
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CVE-2024-41446 (GCVE-0-2024-41446)
Vulnerability from nvd – Published: 2025-04-21 00:00 – Updated: 2025-04-21 14:55
VLAI
Summary
A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the image parameter under the Create/Modify article function.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
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CVE-2024-41447 (GCVE-0-2024-41447)
Vulnerability from nvd – Published: 2025-04-18 00:00 – Updated: 2025-04-18 19:27
VLAI
Summary
A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the author parameter under the Create/Modify article function.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
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CVE-2024-5521 (GCVE-0-2024-5521)
Vulnerability from nvd – Published: 2024-05-30 11:11 – Updated: 2024-08-01 21:18
VLAI
Title
Cross-Site Scripting stored in Alkacon OpenCMS
Summary
Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user having the roles of gallery editor or VFS resource manager will have the permission to upload images in the .svg format containing JavaScript code. The code will be executed the moment another user accesses the image.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
Credits
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CVE-2024-5520 (GCVE-0-2024-5520)
Vulnerability from nvd – Published: 2024-05-30 11:10 – Updated: 2024-08-01 21:18
VLAI
Title
Cross-Site Scripting stored in Alkacon OpenCMS
Summary
Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user with sufficient privileges to create and modify web pages through the admin panel, can execute malicious JavaScript code, after inserting code in the “title” field.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
Impacted products
Credits
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CVE-2023-6380 (GCVE-0-2023-6380)
Vulnerability from nvd – Published: 2023-12-13 10:54 – Updated: 2024-08-28 13:44
VLAI
Title
Open Redirect in Alkacon Software OpenCms
Summary
Open redirect vulnerability has been found in the Open CMS product affecting versions 14 and 15 of the 'Mercury' template. An attacker could create a specially crafted URL and send it to a specific user to redirect them to a malicious site and compromise them. Exploitation of this vulnerability is possible due to the fact that there is no proper sanitization of the 'URI' parameter.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
Date Public
2023-11-29 11:00
Credits
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CVE-2023-6379 (GCVE-0-2023-6379)
Vulnerability from nvd – Published: 2023-12-13 10:52 – Updated: 2024-10-01 14:47
VLAI
Title
Cross-site Scripting in Alkacon Software OpenCms
Summary
Cross-site scripting (XSS) vulnerability in Alkacon Software Open CMS, affecting versions 14 and 15 of the 'Mercury' template. This vulnerability could allow a remote attacker to send a specially crafted JavaScript payload to a victim and partially take control of their browsing session.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
Date Public
2023-11-29 11:00
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CVE-2023-37602 (GCVE-0-2023-37602)
Vulnerability from nvd – Published: 2023-07-20 00:00 – Updated: 2024-10-24 19:47
VLAI
Summary
An arbitrary file upload vulnerability in the component /workplace#!explorer of Alkacon OpenCMS v15.0 allows attackers to execute arbitrary code via uploading a crafted PNG file.
Severity
No CVSS data available.
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
Assigner
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1 reference
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CVE-2023-31544 (GCVE-0-2023-31544)
Vulnerability from nvd – Published: 2023-05-16 00:00 – Updated: 2025-01-23 17:11
VLAI
Summary
A stored cross-site scripting (XSS) vulnerability in alkacon-OpenCMS v11.0.0.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Title field under the Upload Image module.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
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CVE-2021-25968 (GCVE-0-2021-25968)
Vulnerability from nvd – Published: 2021-10-19 08:15 – Updated: 2025-04-30 16:00
VLAI
Title
OpenCMS - Stored Cross-Site Scripting (XSS) in Sitemap
Summary
In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Cross-site Scripting (XSS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
| https://github.com/alkacon/mercury-template/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| org.opencms | opencms-core |
Affected:
10.5.0 , < unspecified
(custom)
Affected: unspecified , ≤ 11.0.2 (custom) |
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CVE-2021-3312 (GCVE-0-2021-3312)
Vulnerability from nvd – Published: 2021-10-08 14:44 – Updated: 2024-08-03 16:53
VLAI
Summary
An XML external entity (XXE) vulnerability in Alkacon OpenCms 11.0, 11.0.1 and 11.0.2 allows remote authenticated users with edit privileges to exfiltrate files from the server's file system by uploading a crafted SVG document.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/alkacon/opencms-core/releases | x_refsource_MISC |
| https://github.com/alkacon/opencms-core/issues/725 | x_refsource_MISC |
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CVE-2019-13236 (GCVE-0-2019-13236)
Vulnerability from nvd – Published: 2019-08-27 11:09 – Updated: 2024-08-04 23:49
VLAI
Summary
In system/workplace/ in Alkacon OpenCms 10.5.4 and 10.5.5, there are multiple Reflected and Stored XSS issues in the management interface.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/alkacon/opencms-core/commits/b… | x_refsource_MISC |
| https://twitter.com/aetsu/status/1152096227938459648 | x_refsource_MISC |
| https://aetsu.github.io/OpenCms | x_refsource_MISC |
| http://packetstormsecurity.com/files/154283/Alkac… | x_refsource_MISC |
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CVE-2019-11819 (GCVE-0-2019-11819)
Vulnerability from nvd – Published: 2019-05-08 15:35 – Updated: 2024-08-04 23:03
VLAI
Summary
Alkacon OpenCMS v10.5.4 and before is affected by CSV (aka Excel Macro) Injection in the module New User (/opencms/system/workplace/admin/accounts/user_new.jsp) via the First Name or Last Name.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/alkacon/opencms-core/issues/636 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2019/… | x_refsource_MISC |
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CVE-2026-2736 (GCVE-0-2026-2736)
Vulnerability from cvelistv5 – Published: 2026-02-19 08:39 – Updated: 2026-03-09 08:54
VLAI
Title
Reflected Cross-Site Scripting (XSS) vulnerability in Alkacon's OpenCms
Summary
Reflected Cross-site Scripting (XSS) in Alkacon's OpenCms v18.0, which allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL containing the ‘q’ parameter in ‘/search/index.html’. This vulnerability can be exploited to steal sensitive user information such as session cookies, or to perform actions while impersonating the user.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Date Public
2026-02-19 08:00
Credits
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CVE-2026-2735 (GCVE-0-2026-2735)
Vulnerability from cvelistv5 – Published: 2026-02-19 08:38 – Updated: 2026-02-20 16:05
VLAI
Title
Stored Cross-Site Scripting (XSS) vulnerability in Alkacon's OpenCms
Summary
Stored Cross-Site Scripting (XSS) in Alkacon's OpenCms v18.0, which occurs when user input is not properly validated when sending a POST request to ‘/blog/new-article/org.opencms.ugc.CmsUgcEditService.gwt’ using the ‘text’ parameter.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Date Public
2026-02-19 08:00
Credits
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CVE-2024-41446 (GCVE-0-2024-41446)
Vulnerability from cvelistv5 – Published: 2025-04-21 00:00 – Updated: 2025-04-21 14:55
VLAI
Summary
A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the image parameter under the Create/Modify article function.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
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3 references
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CVE-2024-42699 (GCVE-0-2024-42699)
Vulnerability from cvelistv5 – Published: 2025-04-21 00:00 – Updated: 2025-04-21 16:06
VLAI
Summary
Cross Site Scripting vulnerability in Create/Modify article function in Alkacon OpenCMS 17.0 allows remote attacker to inject javascript payload via image title sub-field in the image field
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
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CVE-2024-41447 (GCVE-0-2024-41447)
Vulnerability from cvelistv5 – Published: 2025-04-18 00:00 – Updated: 2025-04-18 19:27
VLAI
Summary
A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the author parameter under the Create/Modify article function.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
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CVE-2024-5521 (GCVE-0-2024-5521)
Vulnerability from cvelistv5 – Published: 2024-05-30 11:11 – Updated: 2024-08-01 21:18
VLAI
Title
Cross-Site Scripting stored in Alkacon OpenCMS
Summary
Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user having the roles of gallery editor or VFS resource manager will have the permission to upload images in the .svg format containing JavaScript code. The code will be executed the moment another user accesses the image.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
Credits
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CVE-2024-5520 (GCVE-0-2024-5520)
Vulnerability from cvelistv5 – Published: 2024-05-30 11:10 – Updated: 2024-08-01 21:18
VLAI
Title
Cross-Site Scripting stored in Alkacon OpenCMS
Summary
Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user with sufficient privileges to create and modify web pages through the admin panel, can execute malicious JavaScript code, after inserting code in the “title” field.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
1 reference
Impacted products
Credits
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CVE-2023-6380 (GCVE-0-2023-6380)
Vulnerability from cvelistv5 – Published: 2023-12-13 10:54 – Updated: 2024-08-28 13:44
VLAI
Title
Open Redirect in Alkacon Software OpenCms
Summary
Open redirect vulnerability has been found in the Open CMS product affecting versions 14 and 15 of the 'Mercury' template. An attacker could create a specially crafted URL and send it to a specific user to redirect them to a malicious site and compromise them. Exploitation of this vulnerability is possible due to the fact that there is no proper sanitization of the 'URI' parameter.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
Date Public
2023-11-29 11:00
Credits
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CVE-2023-6379 (GCVE-0-2023-6379)
Vulnerability from cvelistv5 – Published: 2023-12-13 10:52 – Updated: 2024-10-01 14:47
VLAI
Title
Cross-site Scripting in Alkacon Software OpenCms
Summary
Cross-site scripting (XSS) vulnerability in Alkacon Software Open CMS, affecting versions 14 and 15 of the 'Mercury' template. This vulnerability could allow a remote attacker to send a specially crafted JavaScript payload to a victim and partially take control of their browsing session.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
Date Public
2023-11-29 11:00
Credits
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CVE-2023-37602 (GCVE-0-2023-37602)
Vulnerability from cvelistv5 – Published: 2023-07-20 00:00 – Updated: 2024-10-24 19:47
VLAI
Summary
An arbitrary file upload vulnerability in the component /workplace#!explorer of Alkacon OpenCMS v15.0 allows attackers to execute arbitrary code via uploading a crafted PNG file.
Severity
No CVSS data available.
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
Assigner
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CVE-2023-31544 (GCVE-0-2023-31544)
Vulnerability from cvelistv5 – Published: 2023-05-16 00:00 – Updated: 2025-01-23 17:11
VLAI
Summary
A stored cross-site scripting (XSS) vulnerability in alkacon-OpenCMS v11.0.0.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Title field under the Upload Image module.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
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CVE-2021-25968 (GCVE-0-2021-25968)
Vulnerability from cvelistv5 – Published: 2021-10-19 08:15 – Updated: 2025-04-30 16:00
VLAI
Title
OpenCMS - Stored Cross-Site Scripting (XSS) in Sitemap
Summary
In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Cross-site Scripting (XSS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
| https://github.com/alkacon/mercury-template/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| org.opencms | opencms-core |
Affected:
10.5.0 , < unspecified
(custom)
Affected: unspecified , ≤ 11.0.2 (custom) |
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CVE-2021-3312 (GCVE-0-2021-3312)
Vulnerability from cvelistv5 – Published: 2021-10-08 14:44 – Updated: 2024-08-03 16:53
VLAI
Summary
An XML external entity (XXE) vulnerability in Alkacon OpenCms 11.0, 11.0.1 and 11.0.2 allows remote authenticated users with edit privileges to exfiltrate files from the server's file system by uploading a crafted SVG document.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/alkacon/opencms-core/releases | x_refsource_MISC |
| https://github.com/alkacon/opencms-core/issues/725 | x_refsource_MISC |
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CVE-2019-13236 (GCVE-0-2019-13236)
Vulnerability from cvelistv5 – Published: 2019-08-27 11:09 – Updated: 2024-08-04 23:49
VLAI
Summary
In system/workplace/ in Alkacon OpenCms 10.5.4 and 10.5.5, there are multiple Reflected and Stored XSS issues in the management interface.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/alkacon/opencms-core/commits/b… | x_refsource_MISC |
| https://twitter.com/aetsu/status/1152096227938459648 | x_refsource_MISC |
| https://aetsu.github.io/OpenCms | x_refsource_MISC |
| http://packetstormsecurity.com/files/154283/Alkac… | x_refsource_MISC |
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CVE-2019-11819 (GCVE-0-2019-11819)
Vulnerability from cvelistv5 – Published: 2019-05-08 15:35 – Updated: 2024-08-04 23:03
VLAI
Summary
Alkacon OpenCMS v10.5.4 and before is affected by CSV (aka Excel Macro) Injection in the module New User (/opencms/system/workplace/admin/accounts/user_new.jsp) via the First Name or Last Name.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/alkacon/opencms-core/issues/636 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2019/… | x_refsource_MISC |
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