CVE-2026-45010 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
Unauthenticated attackers can brute-force TOTP codes via the admin check endpoint to bypass two-factor authentication and gain administrative access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-45010?
CVE-2026-45010 is a critical authentication bypass vulnerability in thorsten phpmyfaq, published on 15 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-307
Which versions are affected by CVE-2026-45010?
4 open source packages ship an affected version, including thorsten/phpmyfaq and phpmyfaq/phpmyfaq.
| Package | Affected | Fixed in |
|---|---|---|
thorsten/phpmyfaq Packagist | All versions | 4.1.2 |
thorsten/phpmyfaq Packagist | All versions | 4.1.2 |
phpmyfaq/phpmyfaq Packagist | All versions | 4.1.2 |
phpmyfaq/phpmyfaq Packagist | All versions | 4.1.2 |
How do I fix CVE-2026-45010?
Upgrade thorsten/phpmyfaq to 4.1.2 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-45010 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45010 exists.
Sources
Also known as GHSA-9pq7-mfwh-xx2j.