phpMyFAQ - Missing Authorization in Tag Deletion Endpoint
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
phpMyFAQ before 4.1.2 contains a missing authorization vulnerability in the DELETE /admin/api/content/tags/{tagId} endpoint that allows any authenticated user to delete tags. Any logged-in user, including regular frontend users, can delete arbitrary tags by sending a DELETE request with a valid session cookie, resulting in permanent data loss and disruption of FAQ organization.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA phpmyfaq (thorsten) Fixed in 4.1.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
thorsten phpmyfaq 4.1.2
13 records Highest priority Priority HIGH 5 HIGH, 8 MEDIUM
Other records, highest priority first
- TI-2026-32868 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check EndpointPriority HIGH 81
- TI-2026-34083 phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission BypassPriority HIGH 77
- TI-2026-34084 phpMyFAQ - Stored XSS via Utils::parseUrl() in Comment RenderingPriority HIGH 69
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46365
References
Advisory 1
More thorsten vulnerabilities
- TI-2023-00296 Improper Authentication in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
- TI-2026-76118 Authentication bypass in phpMyFAQ via WebAuthn credential injection CVSS 4.0CRITICAL 9.3
- TI-2026-32868 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint CVSS 4.0CRITICAL 9.3
- TI-2026-76108 Unauthenticated denial of service in phpMyFAQ API pagination CVSS 4.0HIGH 8.7
- TI-2026-53313 phpMyFAQ 3.1.0 through 4.1.6 Authentication Bypass via LDAP CVSS 4.0HIGH 8.8
- TI-2026-34083 phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission Bypass CVSS 4.0HIGH 8.7
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences