Privilege escalation in Phpmyfaq
CVE-2026-57995
phpMyFAQ before 4.1.5 contains a privilege escalation vulnerability in GroupController::updatePermissions that allows GROUP_EDIT administrators to grant arbitrary rights to groups without verifying they hold those rights themselves. A delegated administrator can exploit this by assigning high-value permissions to a group they belong to, inheriting those rights and escalating privileges up to full administrative control.
Vulnerability class: Privilege Escalation
EPSS: 0.003 (25.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Phpmyfaq — versions 0, 4.1.5
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-57995?
- CVE-2026-57995 is a high-severity vulnerability in Phpmyfaq, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-06-30.
- How severe is CVE-2026-57995?
- High severity. CVSS v3 base score is 8.8 out of 10.