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...

CVE-2026-33159

CVE-2026-33159 affects Craft CMS. Guest users could access the Config Sync updater index and execute state-changing actions (regenerate-yaml, apply-yaml-changes) without authentication in: Craft CMS 4.0.0-RC1 up to before 4.17.8 and 5.0.0-RC1 up to before 5.9.14. The root cause is unauthenticated...

Missing Authorization

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Missing Authorization via the assets/image-editor endpoint. An attacker can access private editor metadata, including focalPoint, for assets they are not authorized to view by supplying the I...

GHSA-VGJG-248P-RFM2 Craft CMS' anonymous "assets/image-editor" calls return private asset editor metadata to unauthorized users

Summary A low-privileged authenticated user can call assets/image-editor with the ID of a private asset they cannot view and still receive editor response data, including focalPoint. The endpoint returns private editing metadata without per-asset authorization validation. Root-cause analysis: 1...

CVE-2026-33158 Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)

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, a low-privileged authenticated user can read private asset content by calling assets/edit-image with an arbitrary assetId that they are not authorized...

CVE-2026-33158

Craft CMS - CVE-2026-33158: A low-privileged authenticated user could read private asset content by calling assets/edit-image with an arbitrary assetId, bypassing per-asset view authorization. The endpoint returns image bytes or a preview redirect without enforcing access checks, enabling unautho...

CVE-2026-33158 Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)

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, a low-privileged authenticated user can read private asset content by calling assets/edit-image with an arbitrary assetId that they are not authorized...

CVE-2026-33158 Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)

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, a low-privileged authenticated user can read private asset content by calling assets/edit-image with an arbitrary assetId that they are not authorized...

CVE-2026-33157 Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior

Craft CMS is a content management system CMS. From version 5.6.0 to before version 5.9.13, a Remote Code Execution RCE vulnerability exists in Craft CMS, it can be exploited by any authenticated user with control panel access. This is a bypass of a previous fix. The existing patches add...

CVE-2026-33157 Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior

Craft CMS is a content management system CMS. From version 5.6.0 to before version 5.9.13, a Remote Code Execution RCE vulnerability exists in Craft CMS, it can be exploited by any authenticated user with control panel access. This is a bypass of a previous fix. The existing patches add...

CVE-2026-33157

Craft CMS 5.x (5.6.0–5.9.12) is vulnerable to authenticated Remote Code Execution via malicious attached behavior, due to un sanitized fieldLayouts in ElementIndexesController::actionFilterHud() feeding FieldLayout::createFromConfig(). The bug chain bypasses a prior fix that cleansed inputs with ...

CVE-2026-33157 Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior

Craft CMS is a content management system CMS. From version 5.6.0 to before version 5.9.13, a Remote Code Execution RCE vulnerability exists in Craft CMS, it can be exploited by any authenticated user with control panel access. This is a bypass of a previous fix. The existing patches add...

GHSA-5PGF-H923-M958 Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL

Summary An unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes. The endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL. Details Root cause: - Anonymous...

Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL

Summary An unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes. The endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL. Details Root cause: - Anonymous...

EUVD-2026-14940

Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL...

Missing Authorization

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Missing Authorization via the assets/generate-transform endpoint. An attacker can access content derived from private assets by submitting requests with arbitrary asset references, as the...

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...

GHSA-6MRR-Q3PJ-H53W Craft CMS: Unauthenticated Users Can Perform Restricted Project Config Sync Operations

Summary 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. Details ConfigSyncController extends BaseUpdaterController, and the base updater is anonymously accessible for...

GHSA-3PVF-VXRV-HH9C Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)

Summary A low-privileged authenticated user can read private asset content by calling assets/edit-image with an arbitrary assetId that they are not authorized to view. The endpoint returns image bytes or a preview redirect without enforcing a per-asset view authorization check, leading to potenti...