VULNERABILITY INTELLIGENCE

CVE-2026-76213

CVSS score7.4 HIGH

EPSS probability0.45%

CISA KEVNot currently listed

Published2026-08-19

Last modified2026-09-01

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

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.

Weakness classification

disclosure@vulncheck.com: CWE-307

Primary references

disclosure@vulncheck.com — Exploit, Mitigation, Vendor Advisory
disclosure@vulncheck.com — Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Mitigation, Vendor Advisory