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 authenticat…
Published: 2026-03-24 · CVSS: 4.9 · CVSS 4.0
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 to view. The endpoint returns image bytes (or a preview redirect) without enforcing a per-asset view authorization check, leading to potential unauthorized disclosure of private files. This issue has been patched in versions 4.17.8 and 5.9.14.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7