CVE-2026-109306

Medium

Description

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.

SeverityMedium

CVSS5.9

Exploit probability—

ProductCms

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

craftcms cms5.10.14 or later

Vendor advisories

github.com/craftcms/cms/security/advisories/GHSA-4wfw-q5w3-jh42

Affected products

Product	Affected versions	Fixed in
craftcms cms	5.0.0 ≤ v < 5.10.14	5.10.14

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.