Description
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.
Published: 2026-05-15
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-9pq7-mfwh-xx2j phpMyFAQ enables unauthenticated 2FA brute-force attack via /admin/check acceptance of arbitrary user-id
History

Thu, 28 May 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Phpmyfaq
Phpmyfaq phpmyfaq
CPEs cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
Vendors & Products Phpmyfaq
Phpmyfaq phpmyfaq
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Fri, 15 May 2026 23:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 15 May 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Thorsten
Thorsten phpmyfaq
Vendors & Products Thorsten
Thorsten phpmyfaq

Fri, 15 May 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
Weaknesses CWE-307
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Subscriptions

Phpmyfaq Phpmyfaq
Thorsten Phpmyfaq
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-28T14:15:22.666Z

Reserved: 2026-05-08T16:43:53.068Z

Link: CVE-2026-45010

cve-icon Vulnrichment

Updated: 2026-05-15T22:11:49.886Z

cve-icon NVD

Status : Deferred

Published: 2026-05-15T19:17:01.450

Modified: 2026-06-17T10:51:36.220

Link: CVE-2026-45010

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T17:45:22Z

Weaknesses