CVE-2026-85591 Details
Description
phpMyFAQ versions before 4.1.8 contain an authentication bypass vulnerability in the user control panel API endpoint that allows authenticated attackers to change account passwords without verifying the current password. Attackers with session access can submit a PUT request to the user data update endpoint with only a CSRF token to silently change any user's password, including administrators, causing irreversible account takeover and victim lockout.
A vulnerability allowing authentication bypass has been identified in phpMyFAQ versions prior to 4.1.8. This issue resides in the user control panel API endpoint, where authenticated attackers can change account passwords without verifying the current password. The vulnerability can be exploited by attackers with session access, who can submit a PUT request to the user data update endpoint. The request only requires a CSRF token to silently change any user's password, including that of administrators. This flaw leads to irreversible account takeover and locks out the victim.
To address this vulnerability, phpMyFAQ should be updated to version 4.1.8 or later. Users should also be advised to verify that their passwords have not been changed without their knowledge.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 4, 2026CISA-ADP
Assessed Sep 10, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-6r2c-694w-24qv | [email protected] | AdvisoryTechnical AnalysisVendor |
| https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-authentication-bypass-via-unverified-password-change | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-620 | Unverified Password Change | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| phpMyFAQ | <= 4.1.7 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 10, 2026 | CVE Modified | CISA-ADP |
| Sep 4, 2026 | New CVE Received | [email protected] |