CVE-2026-109306

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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/craftcms/cms/security/advisories/GHSA-4wfw-q5w3-jh42
https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.10.14-missing-authorization-via-app-switch-to-licensed-edition

Configurations

No configuration.

History

12 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 17:17

Updated : 2026-10-18 12:17

NVD link : CVE-2026-109306

Mitre link : CVE-2026-109306

CVE.ORG link : CVE-2026-109306

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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