Vulnerability · Published Aug 19, 2026 · Assigned by VulnCheck

CVE-2026-76213phpMyFAQ before 4.1.7 2FA Brute-Force via Session-Scoped Throttle

High 7.4

In plain English

A high-severity security flaw in phpMyFAQ from thorsten. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)7.4High

Exploit odds (30 days)0.4%top 60.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
thorsten	phpMyFAQ	0 – before 4.1.7

Weakness: CWE-307 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-f98m-hcjv-7rp9) vendor-advisory
VulnCheck Advisory: phpMyFAQ before 4.1.7 2FA Brute-Force via Session-Scoped Throttle third-party-advisory