by Kastro
Paper/Archive/CVE-2026-45010

CVE-2026-45010

thorsten phpmyfaq — phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint

EPSS 0.4%public exploitCVSS 9.3
critical.is priorityof 100
45
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 37.5.375 × 207.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
phpmyfaq< 4.1.24.1.2CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
VulnCheck (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2jwriteupvulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpoint