Common Weakness Enumeration
CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
3983 vulnerabilities reference this CWE, most recent first.
CVE-2026-65642 (GCVE-0-2026-65642)
Vulnerability from cvelistv5 – Published: 2026-08-26 21:21 – Updated: 2026-08-27 18:07
VLAI
EPSS
VEX
Summary
Insecure direct object reference in Plesk 18.0.79.7 and earlier or 18.0.80 through 18.0.80.3, allows remote authenticated users to read and modify other customers' databases.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 18:03 UTC
CWE
- CWE-639 - Insecure Direct Object Reference (IDOR)
Assigner
References
1 reference
Impacted products
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CVE-2026-65523 (GCVE-0-2026-65523)
Vulnerability from cvelistv5 – Published: 2026-08-06 14:27 – Updated: 2026-08-06 17:38
VLAI
EPSS
VEX
Title
WordPress Formidable Forms Signature Online Contract Automation plugin <= 2.0.1 - Insecure Direct Object References (IDOR) vulnerability
Summary
Unauthenticated Insecure Direct Object References (IDOR) in Formidable Forms Signature Online Contract Automation <= 2.0.1 versions.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 17:37 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| approveme | Formidable Forms Signature Online Contract Automation |
Affected:
n/a , ≤ 2.0.1
(custom)
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CVE-2026-65501 (GCVE-0-2026-65501)
Vulnerability from cvelistv5 – Published: 2026-07-23 11:19 – Updated: 2026-07-23 13:35
VLAI
EPSS
VEX
Title
WordPress Shiptastic for WooCommerce plugin <= 5.1.0 - Insecure Direct Object References (IDOR) vulnerability
Summary
Unauthenticated Insecure Direct Object References (IDOR) in Shiptastic for WooCommerce <= 5.1.0 versions.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:35 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vendidero | Shiptastic for WooCommerce |
Affected:
n/a , ≤ 5.1.0
(custom)
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CVE-2026-65463 (GCVE-0-2026-65463)
Vulnerability from cvelistv5 – Published: 2026-07-23 11:18 – Updated: 2026-07-23 13:29
VLAI
EPSS
VEX
Title
WordPress Masteriyo - LMS plugin <= 2.3.1 - Insecure Direct Object References (IDOR) vulnerability
Summary
Subscriber Insecure Direct Object References (IDOR) in Masteriyo - LMS <= 2.3.1 versions.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:29 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| masteriyo | Masteriyo - LMS |
Affected:
n/a , ≤ 2.3.1
(custom)
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CVE-2026-65456 (GCVE-0-2026-65456)
Vulnerability from cvelistv5 – Published: 2026-07-23 11:18 – Updated: 2026-07-23 13:30
VLAI
EPSS
VEX
Title
WordPress Product Slider for WooCommerce plugin <= 1.13.62 - Insecure Direct Object References (IDOR) vulnerability
Summary
Contributor Insecure Direct Object References (IDOR) in Product Slider for WooCommerce <= 1.13.62 versions.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:30 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PickPlugins | Product Slider for WooCommerce |
Affected:
n/a , ≤ 1.13.62
(custom)
|
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CVE-2026-65316 (GCVE-0-2026-65316)
Vulnerability from cvelistv5 – Published: 2026-07-21 21:23 – Updated: 2026-07-28 01:06
VLAI
EPSS
VEX
Title
xxl-job Cross-Job-Group Log Disclosure via Missing Authorization Check in /joblog/logDetailCat
Summary
XXL-Job version 2.4.2 contains an insecure direct object reference vulnerability that allows authenticated users to read execution log content from job groups they are not authorized to access by supplying arbitrary sequential log IDs to the logDetailCat endpoint. Attackers can enumerate log records across all job groups by calling the logDetailCat endpoint with incremented logId parameter values, bypassing the permission check present in the sibling logDetailPage endpoint, and retrieve sensitive log content from restricted job groups.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 18:29 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/xuxueli/xxl-job/issues/3983 | issue-tracking |
| https://github.com/xuxueli/xxl-job | product |
| https://www.vulncheck.com/advisories/xxl-job-cros… | third-party-advisory |
Impacted products
Date Public
2026-07-21 00:00
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CVE-2026-65016 (GCVE-0-2026-65016)
Vulnerability from cvelistv5 – Published: 2026-07-22 11:21 – Updated: 2026-07-24 21:35
VLAI
EPSS
VEX
Title
n8n before 1.123.64, 2.29.8, and 2.30.1 Privilege Escalation via SSO Instance-Role
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 18:16 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories… | vendor-advisory |
| https://www.vulncheck.com/advisories/n8n-before-p… | third-party-advisory |
Impacted products
Date Public
2026-07-08 00:00
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CVE-2026-65013 (GCVE-0-2026-65013)
Vulnerability from cvelistv5 – Published: 2026-07-22 16:14 – Updated: 2026-07-24 21:35 X_Open Source
VLAI
EPSS
VEX
Title
Onlook tRPC Insecure Direct Object Reference via multiple procedures
Summary
Onlook through 0.2.32, fixed in commit 423e2e9, contains a broken object level authorization vulnerability that allows authenticated attackers to access and manipulate other users' resources by supplying arbitrary UUID values to tRPC API procedures including project.get, member.remove, and chat.conversation.delete. Attackers can provide arbitrary projectId or conversationId values without authorization validation to read, modify, and delete other users' project data, members, and conversation history.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 14:10 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/onlook-dev/onlook/issues/3122 | technical-descriptionexploitissue-tracking |
| https://github.com/onlook-dev/onlook/pull/3129 | issue-trackingpatch |
| https://github.com/onlook-dev/onlook/commit/423e2… | patch |
| https://www.vulncheck.com/advisories/onlook-trpc-… | third-party-advisory |
Impacted products
Date Public
2026-07-03 00:00
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CVE-2026-64969 (GCVE-0-2026-64969)
Vulnerability from cvelistv5 – Published: 2026-08-20 13:58 – Updated: 2026-08-20 15:26 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
Insecure Direct Object Reference in ATutor
Summary
ATutor is vulnerable to Insecure Direct Object Reference (IDOR) attack in profile picture related endpoints. Any authenticated user, including a student, can supply another user's member_id in a POST request to the profile album endpoint and permanently delete that user's profile picture, including those of instructors and administrators.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:01 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-64960 | third-party-advisory |
| https://atutor.github.io/ | product |
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CVE-2026-64961 (GCVE-0-2026-64961)
Vulnerability from cvelistv5 – Published: 2026-08-20 13:57 – Updated: 2026-08-20 15:26 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
Authentication Bypass in ATutor
Summary
ATutor is vulnerable to authentication bypass . Although a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths. An unauthenticated attacker who can determine a user's identifier and registration timestamp can generate a valid token and authenticate as an existing user, including administrator, without knowing the password.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:58 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-64960 | third-party-advisory |
| https://atutor.github.io/ | product |
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Mitigation
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Architecture and Design
Implementation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation
Architecture and Design
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
No CAPEC attack patterns related to this CWE.