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CVE-2026-33158

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

Published: Mar 24, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-639
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.4%
Top 73.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

cmscraftcmsWeb & CMS Plugins
craft cmscraftcmsWeb & CMS Plugins
craftcmscommercialNZWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c
github.com
https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
github.com
https://github.com/craftcms/cms/releases/tag/4.17.8
github.com
and 1 more references View all →

Timeline

Published
Mar 24, 2026
Last Updated
Mar 26, 2026

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