phpMyFAQ <4.1.4 auth escalation via editUser/updateUserRights
CVE-2026-56396 Published on June 21, 2026

phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-56396 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is an AuthZ Vulnerability?

The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

CVE-2026-56396 has been classified to as an AuthZ vulnerability or weakness.


Products Associated with CVE-2026-56396

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Affected Versions

phpMyFAQ: