CVE-2026-45010phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
Updated under an hour ago ()
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It affects thorsten phpmyfaq. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-307
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- May 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
thorsten phpmyfaq thorsten:phpmyfaq (from the name) | before 4.1.2; 4.1.2 not affected | CNA record |
References
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2jvendor-advisory
- https://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpointthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.