Craft is a platform for creating digital experiences. In versions 4.0.0-RC1 through 4.16.17 and 5.0.0-RC1 through 5.8.21, a Remote Code Execution (RCE) vulnerability exists in Craft CMS where the assembleLayoutFromPost() function in src/services/Fields.php fails to sanitize user-supplied configuration data before passing it to Craft::createObject(). This allows authenticated administrators to inject malicious Yii2 behavior configurations that execute arbitrary system commands on the server. This vulnerability represents an unpatched variant of the behavior injection vulnerability addressed in CVE-2025-68455, affecting different endpoints through a separate code path. This vulnerability is fixed in 5.8.22.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-7jx7-3846-m7w7 Craft CMS Vulnerable to potential authenticated Remote Code Execution via malicious attached Behavior
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 10 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 10 Feb 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Craftcms
Craftcms craftcms
Vendors & Products Craftcms
Craftcms craftcms

Mon, 09 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Description Craft is a platform for creating digital experiences. In versions 4.0.0-RC1 through 4.16.17 and 5.0.0-RC1 through 5.8.21, a Remote Code Execution (RCE) vulnerability exists in Craft CMS where the assembleLayoutFromPost() function in src/services/Fields.php fails to sanitize user-supplied configuration data before passing it to Craft::createObject(). This allows authenticated administrators to inject malicious Yii2 behavior configurations that execute arbitrary system commands on the server. This vulnerability represents an unpatched variant of the behavior injection vulnerability addressed in CVE-2025-68455, affecting different endpoints through a separate code path. This vulnerability is fixed in 5.8.22.
Title Craft has a potential authenticated Remote Code Execution via malicious attached Behavior
Weaknesses CWE-470
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-10T15:59:54.896Z

Reserved: 2026-02-02T16:31:35.824Z

Link: CVE-2026-25498

cve-icon Vulnrichment

Updated: 2026-02-10T15:32:09.713Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-02-09T20:15:58.510

Modified: 2026-02-09T21:55:30.093

Link: CVE-2026-25498

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T15:37:26Z

Weaknesses