CVE-2026-56396 | phpMyFAQ before 4.1.4 contains missing authorization vulnera… | CVSS 8.8 HIGH

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.

Metadata

CVE ID: CVE-2026-56396
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-21 12:37 UTC
Published: 2026-06-21 13:27 UTC
Last updated: 2026-06-21 13:27 UTC
Primary CWE: CWE-862
Missing Authorization
Vendor / Product: phpMyFAQ / phpMyFAQ
Sources: cve.org · NVD

Severity & Metrics

8.8 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products (1)

Vendor	Product	Platform	Versions
phpMyFAQ	phpMyFAQ	—	0 < 4.1.4, 4.1.4

Weakness (CWE)

CWE	Source	Description
CWE-862	cna	Missing Authorization

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.8	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (2)

GHSA Advisory GHSA-985r-q3qp-299h https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-985r-q3qp-299h
VulnCheck Advisory: phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights() https://www.vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-authorization-in-edituser-and-updateuserrights