CVE-2026-33159 MEDIUM

CVE-2026-33159: Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users

Vendor Craftcms
Product cms
Weakness CWE-306 · Missing auth
Published March 24, 2026
Last update March 24, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.

Key dates

02Disclosure timeline

March 24, 2026 CVE published
March 24, 2026 Record updated