CVE-2026-76213

critical · 9.1

phpMyFAQ before 4.1.7 contains a brute-force vulnerability in the two-factor authentication step where the failure counter is session-scoped and reset on each successful password re-authentication. Attackers with a valid password can bypass the five-attempt limit by obtaining a fresh session cookie and repeatedly re-authenticating to reset the counter, enabling unbounded TOTP code guessing.

9.1

CVSS

0.4%

EPSS (exploit prob.)

39th

EPSS percentile

2026-08-19

Published

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-307

Affected products

Vendor	Product	Affected versions
phpmyfaq	phpmyfaq	< 4.1.7

Check a specific version with /api/v1/cve/match.

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-f98m-hcjv-7rp9
https://www.vulncheck.com/advisories/phpmyfaq-before-2fa-brute-force-via-session-scoped-throttle
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-f98m-hcjv-7rp9

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-76213