CVE-2026-45010
phpMyFAQ before 4.1.2 contains an improper restriction of excessive authentication attempts vulnerability in the /admin/check endpoint, which accepts arbitrary user-id parameters without session binding or rate limiting. Unauthenticated attackers can brute-force any user's six-digit TOTP code by submitting POST requests with sequential token values, bypassing two-factor authentication to gain full administrative access.
- Score
- CVSS 4.0 9.3 Critical
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-05-15
- Last modified
- 2026-10-26
- Weaknesses
- CWE-307
Affected products
References
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2j
- https://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-end…
