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 4.0

6.0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

5.9CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-12

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

References

• 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

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