CVE-2026-35671 phpMyFAQ - Insecure Direct Object Reference in User Password API
Authenticated low-privilege admins can escalate to SuperAdmin by modifying the userId parameter in the password API, allowing unauthorized password changes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-35671?
CVE-2026-35671 is a high-severity missing authorization vulnerability in thorsten phpMyFAQ, published on 28 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
phpMyFAQ before 4.1.3 contains an insecure direct object reference vulnerability in the admin API user password endpoint that allows authenticated administrators to change any user's password without authorization verification. An attacker with low-privilege admin credentials can escalate to SuperAdmin by modifying the userId parameter in the overwrite-password API request.
Weakness: CWE-266
Which versions are affected by CVE-2026-35671?
4 open source packages ship an affected version, including thorsten/phpmyfaq and phpmyfaq/phpmyfaq.
| Package | Affected | Fixed in |
|---|---|---|
thorsten/phpmyfaq Packagist | All versions | 4.1.3 |
thorsten/phpmyfaq Packagist | All versions | 4.1.3 |
phpmyfaq/phpmyfaq Packagist | All versions | 4.1.3 |
phpmyfaq/phpmyfaq Packagist | All versions | 4.1.3 |
How do I fix CVE-2026-35671?
Upgrade thorsten/phpmyfaq to 4.1.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-35671 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35671 exists.
Sources
Also known as GHSA-xvp4-phqj-cjr3.