Craft CMS: Authorized asset "preview file" requests bypass allows users without asset access to retrieve private preview metadata

Summary An authenticated low-privileged user can call assets/preview-file for an asset they are not authorized to view and still receive preview response data previewHtml for that private asset. The returned preview HTML included a private preview image route containing the target private assetId...

CVE-2026-33160 Craft CMS: Anonymous "generate transform" calls for assets can expose private assets via transform URL

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, an unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes. T...

CVE-2026-33160 Craft CMS: Anonymous "generate transform" calls for assets can expose private assets via transform URL

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, an unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes. T...

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...

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...