---
id: CVE-2026-111890
title: >-
  phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta Privilege Escalation via
  updateUserRights
summary: >-
  phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation
  vulnerability in UserController::updateUserRights that drops per-right
  language restrictions when rights are re-granted. Administrators holding
  USER_EDIT can s…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-269
vendor: thorsten
product: phpMyFAQ
affected:
  - phpMyFAQ >= 4.2.0-alpha.2 < 4.2.0-beta
published: '2026-10-17'
updated: '2026-10-17'
sourceUpdated: '2026-10-17T18:46:14.542Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111890'
references:
  - url: >-
      https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-3666-fmjj-qm5h
    label: GitHub Security Advisory (GHSA-3666-fmjj-qm5h)
  - url: >-
      https://www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha.2-before-4.2.0-beta-privilege-escalation-via-updateuserrights
    label: >-
      VulnCheck Advisory: phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta Privilege
      Escalation via updateUserRights
tags:
  - cve.org
ingestedAt: '2026-10-17T19:08:56.960Z'
---

## Overview

phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation vulnerability in UserController::updateUserRights that drops per-right language restrictions when rights are re-granted. Administrators holding USER_EDIT can submit language-scoped rights to the update-rights API, including for themselves, to gain unrestricted FAQ create, edit, and publish access across all languages.

## Affected

- `phpMyFAQ >= 4.2.0-alpha.2 < 4.2.0-beta`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.