---
id: CVE-2026-109306
title: >-
  Craft CMS from 5.0.0 before 5.10.14 contains a missing authorization
  vulnerability in AppController::actionSwitchToLicensedEdition() that lets any
  authenticated user change the installed edition
summary: >-
  Craft CMS from 5.0.0 before 5.10.14 contains a missing authorization
  vulnerability in AppController::actionSwitchToLicensedEdition() that lets any
  authenticated user change the installed edition. Low-privileged front-end
  users can call t…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H'
cwe:
  - CWE-862
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T17:17:24.923'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109306'
references:
  - url: 'https://github.com/craftcms/cms/security/advisories/GHSA-4wfw-q5w3-jh42'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.10.14-missing-authorization-via-app-switch-to-licensed-edition
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-12T18:00:08.196Z'
vendor: craftcms
product: cms
affected:
  - cms >= 5.0.0 < 5.10.14
epss: 0.00233
epssPercentile: 0.14155
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-18T11:50:28.638749Z'
---

## Overview

Craft CMS from 5.0.0 before 5.10.14 contains a missing authorization vulnerability in AppController::actionSwitchToLicensedEdition() that lets any authenticated user change the installed edition. Low-privileged front-end users can call the action route when the licensed edition mismatches to persistently downgrade the site edition in project config, which admins cannot reverse from the control panel.

## Remediation

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