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

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-chang...

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

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-chang...

Missing Authorization

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Missing Authorization via the ConfigSyncController process. An attacker can perform unauthorized configuration synchronization operations by sending crafted requests to endpoints such as...

CVE-2026-33159: Missing Authentication for Critical Function

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-chang...