Advisories

phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint

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severity
critical
date
Affecting
  • phpmyfaq >= 0, < 4.1.2

CWE
  • CWE-307 Improper Restriction of Excessive Authentication Attempts
CVSS
9.1
Credit
adrgs, aisafe-bot
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.

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