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CVE CVE-2026-57996

CVE-2026-57996

PHP

Severity: HIGH
CVSS: 8.8CVSS
Published: 2026-07-15
Last modified: 2026-07-15
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-269

Description

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.

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-r2f4-v277-hvw9
https://www.vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-superadmin-guard-in-user-add-endpoint

Summary

Description

References