What is CVE-2026-111886?

CVE-2026-111886 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-10-17.

How severe is CVE-2026-111886?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Thorsten Phpmyfaq

CVE-2026-111886

phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta lacks brute-force lockout in the removeTwofactorConfig() 2FA removal endpoint, allowing authenticated attackers to guess TOTP codes without limit. Attackers holding a hijacked session and CSRF token can repeatedly POST guesses to /api/user/remove-twofactor to permanently disable the victim's 2FA.

Published 2026-10-17 · last modified 2026-10-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Thorsten Phpmyfaq

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7pjw-6v4g-f837 (vendor-advisory)
www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha.2-before-4.2.0-beta-2fa-brute… (third-party-advisory)

Frequently asked questions

What is CVE-2026-111886?: CVE-2026-111886 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-10-17.
How severe is CVE-2026-111886?: Medium severity. CVSS v3 base score is 6.5 out of 10.