---
id: CVE-2026-45010
title: >-
  phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via
  /admin/check Endpoint
summary: >-
  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 …
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-307
vendor: thorsten
product: phpmyfaq
affected:
  - phpmyfaq < 4.1.2
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-05-15T22:11:39.787082Z'
exploitAvailable: true
published: '2026-05-15'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:03:35.963Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-45010'
references:
  - url: >-
      https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2j
    label: GitHub Security Advisory (GHSA-9pq7-mfwh-xx2j)
  - url: >-
      https://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpoint
    label: >-
      VulnCheck Advisory: phpMyFAQ - Unauthenticated Two-Factor Authentication
      Brute-Force via /admin/check Endpoint
tags:
  - cve.org
  - exploit-available
epss: 0.00432
epssPercentile: 0.37753
ingestedAt: '2026-11-08T14:51:22.425Z'
---

## Overview

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

- `phpmyfaq < 4.1.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.