What is CVE-2026-56396?

CVE-2026-56396 is a high-severity vulnerability in Phpmyfaq, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-06-21.

How severe is CVE-2026-56396?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Phpmyfaq

CVE-2026-56396

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_s…

Vulnerability class: Broken Access Control

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, 4.1.4

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56396?: CVE-2026-56396 is a high-severity vulnerability in Phpmyfaq, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-06-21.
How severe is CVE-2026-56396?: High severity. CVSS v3 base score is 8.8 out of 10.