CVE-2026-35676 phpMyFAQ - Unauthenticated Password Reset via User Password Update Endpoint

High 8.8 Published Updated

Unauthenticated attackers can reset user passwords via the API, leading to account takeover and denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-35676?

CVE-2026-35676 is a high-severity authentication bypass vulnerability in thorsten phpMyFAQ, published on 28 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

phpMyFAQ before 4.1.3 contains an unauthenticated password reset vulnerability in the user password update API endpoint that allows attackers to change account passwords without token validation. Attackers can enumerate valid username and email pairs and force immediate password changes by sending PUT requests to the /api/index.php/user/password/update endpoint, causing account disruption and invalidating legitimate user credentials.

Weakness: CWE-640

Which versions are affected by CVE-2026-35676?

4 open source packages ship an affected version, including thorsten/phpmyfaq and phpmyfaq/phpmyfaq.

PackageAffectedFixed in
thorsten/phpmyfaq PackagistAll versions4.1.3
thorsten/phpmyfaq PackagistAll versions4.1.3
phpmyfaq/phpmyfaq PackagistAll versions4.1.3
phpmyfaq/phpmyfaq PackagistAll versions4.1.3

How do I fix CVE-2026-35676?

Upgrade thorsten/phpmyfaq to 4.1.3 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-35676 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35676 exists.

Sources

Also known as GHSA-9qv9-8xv6-5p35.

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