Privilege escalation in Thorsten Phpmyfaq
CVE-2026-111893
phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains a privilege escalation vulnerability in GroupController::saveCategoryRestrictions() that lets delegated administrators assign categories outside their own scope. Category-restricted administrators can POST to /admin/api/group/category-restrictions with out-of-scope or empty categoryIds to grant groups unrestricted category access.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/thorsten/phpMyFAQ/security/advisories/GHSA-gv7w-78f6-mcmh (vendor-advisory)
- www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-privilege-e… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111893?
- CVE-2026-111893 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Improper Privilege Management. CVSS score: 6.5/10. Published 2026-10-17.
- How severe is CVE-2026-111893?
- Medium severity. CVSS v3 base score is 6.5 out of 10.