CVE-2026-111891

Medium

Description

phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation vulnerability in the group permission API, whose updatePermissions and updateMembers endpoints check held rights without regard to language or category scope and write unrestricted group grants. Non-superadmin administrators holding GROUP_EDIT can grant a group a right they hold only in a narrow scope and self-join it via updateMembers, gaining unrestricted FAQ create, edit, and publish access across all languages and categories.

SeverityMedium

CVSS5.5

Exploit probability—

ProductphpMyFAQ

PublishedOct 17, 2026

First seenOct 17, 2026

Weakness typeCWE-269Improper privilege management

How to fix

Update

thorsten phpMyFAQ4.2.0-beta or later

Vendor advisories

github.com/thorsten/phpMyFAQ/security/advisories/GHSA-6vf7-mrj2-7c37

Affected products

Product	Affected versions	Fixed in
thorsten phpMyFAQ	4.2.0-alpha.2 ≤ v < 4.2.0-beta	4.2.0-beta

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