CVE-2026-33158 Craftcms — Exploit & Vulnerability Details MEDIUM

Parameter	Value
CVSS	4.9 (MEDIUM)
Affected Versions	before 5.9.14
Fixed In	4.17.8
Type	CWE-639 (Authorization Bypass)
Vendor	Craftcms
Public PoC	No

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.

Attack Parameters

Attack Vector

Network

Can be exploited remotely

Attack Complexity

Low

Easy to exploit

Attack Requirements

None

No additional conditions

Privileges Required

Low

Basic privileges needed

User Interaction

None

No user interaction needed

Impact Assessment

Confidentiality

High

Complete data leak

Integrity

None

No data modification

Availability

None

No disruption

CVSS Vector v4.0

Weakness Type (CWE)

CWE-639 Authorization Bypass

Vulnerable Products 8

Configuration	From (including)	Up to (excluding)
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms::::::::	`> 4.0.0`	`4.17.8`
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms::::::::	`> 5.0.0`	`5.9.14`
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms:4.0.0:-::::::	—	—
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1::::::	—	—
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2::::::	—	—
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3::::::	—	—
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms:5.0.0:-::::::	—	—
Craftcms Craft_Cms cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1::::::	—	—