Vulnerability · Published Jun 21, 2026 · Assigned by VulnCheck
CVE-2026-56396phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()
High 8.8
In plain English
A high-severity missing authorization in phpMyFAQ from phpMyFAQ. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 61.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
phpMyFAQ before 4.1.4 contains missing authorization vulnerabilities in editUser() and updateUserRights() endpoints that allow authenticated administrators to escalate privileges. Non-SuperAdmin users with edit_user permission can set is_superadmin flag or grant arbitrary rights to escalate to SuperAdmin access.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | phpmyfaq/phpmyfaq | 4.1.4 | GHSA-985r-q3qp-299h |
| Packagist | thorsten/phpmyfaq | 4.1.4 | GHSA-985r-q3qp-299h |
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- GHSA Advisory GHSA-985r-q3qp-299h vendor-advisory
- VulnCheck Advisory: phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights() third-party-advisory