CVE-2026-33158

Name: CVE-2026-33158
Creator: NVD / NIST
Published: 2026-03-24T18:16:09.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2026-33158 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. 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. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS 4.0

4.9/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.35%

27.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Craftcms	Craft Cms	> 4.0.0, < 4.17.8
Craftcms	Craft Cms	> 5.0.0, < 5.9.14
Craftcms	Craft Cms	4.0.0
Craftcms	Craft Cms	5.0.0

References

https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860Patch
https://github.com/craftcms/cms/releases/tag/4.17.8Release Notes
https://github.com/craftcms/cms/releases/tag/5.9.14Release Notes
https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9cVendor Advisory

Timeline

Published: Mar 24, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33158?

How severe is CVE-2026-33158?

CVE-2026-33158 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33158?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-33158?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST