CVE-2026-33158CWE-639

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

Medium · published March 24, 2026

CVSS v4.0
4.9
EPSS
0%
Percentile
37.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
4.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
EPSS
0.00439 · 37.1th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-03-24T17:26Z
EPSS history
Timeline
  • 24 MAR 17:26Z
    Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)
    cvelistv5