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CVE-2026-44011

Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior

Published: May 12, 2026Updated: May 13, 2026 Sources: CVE List NVD BDUCWE-479
NVD MITRE
7.2CVSSHIGH
EPSS Score
0.3%
Top 73.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Craft CMS is a content management system (CMS). From 4.0.0 to before 4.17.12 and 5.9.18, Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. The request-controlled condition field layouts data is converted into a live FieldLayout object without a Component::cleanseConfig() boundary. Because Craft configures models before parent::__construct(), attacker-controlled special config keys can take effect during object creation, and FieldLayout initialization then triggers a same-request event. This vulnerability is fixed in 4.17.12 and 5.9.18.

CVSS Vector Breakdown

AV:NAC:LC:HI:HA:H
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:HConfidentiality
H
I:HIntegrity
H
A:HAvailability
H
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Weaknesses

CWE-479

Affected Products

Crafter CMSCrafter Software Corporation
On-prem
Web & CMS Plugins / cms-core
cmscraftcmsWeb & CMS Plugins
crafter software corporationcommercialWeb & CMS Plugins
craftcmscommercialNZWeb & CMS Plugins

Exploitability

Official Patch Available

References

https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw
github.com
https://github.com/craftcms/cms/commit/ab85ca7f5f926994f723f60584054a1f4c4c5de3
github.com
https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw
github.com

Timeline

Published
May 12, 2026
Last Updated
May 13, 2026

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