CVE-2026-33158

MEDIUM

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

Title source: cna
STIX 2.1

Description

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.

References (4)

Scores

CVSS v3 6.5
EPSS 0.0001
EPSS Percentile 2.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-639
Status published
Products (6)
craftcms/cms 4.0.0-RC1 - 4.17.8Packagist
craftcms/cms >= 4.0.0-RC1, < 4.17.8
craftcms/cms >= 5.0.0-RC1, < 5.9.14
craftcms/craft_cms 4.0.0 (4 CPE variants)
craftcms/craft_cms 5.0.0 (2 CPE variants)
craftcms/craft_cms 4.0.0 - 4.17.8
Published Mar 24, 2026
Tracked Since Mar 24, 2026