CVE-2026-45010
CRITICALphpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GHSA Advisory GHSA-9pq7-mfwh-xx2j
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2j
Third Party Advisory third-party-advisory
VulnCheck Advisory: phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
https://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpoint
Scores
CVSS v3
9.1
EPSS
0.0034
EPSS Percentile
25.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-307
Status
published
Products (4)
phpmyfaq/phpmyfaq
0 - 4.1.2Packagist
thorsten/phpmyfaq
< 4.1.2
thorsten/phpmyfaq
0 - 4.1.2Packagist
thorsten/phpmyfaq
4.1.2
Published
May 15, 2026
Tracked Since
May 16, 2026