PT-2026-60123 · Phpmyfaq · Phpmyfaq

Yanchon918S · Published 2026-07-15 · Updated 2026-07-15 · CVE-2026-57996

NVD

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

phpMyFAQ before 4.1.5 contains a privilege escalation vulnerability in the user/add API endpoint that allows non-SuperAdmin administrators to create SuperAdmin accounts. A delegated administrator with USER ADD/EDIT/DELETE permissions can call POST /admin/api/user/add with isSuperAdmin: true and attacker-chosen credentials to create a SuperAdmin account, then authenticate as that account to achieve full instance takeover.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2026-57996

Affected Products

Phpmyfaq

References · 3

• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-r2f4-v277-hvw9 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-57996 · Security Note
• https://vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-superadmin-guard-in-user-add-endpoint · Note