CVE-2026-25498

Craft has a potential authenticated Remote Code Execution via malicious attached Behavior

State: Published
Severity: 8.6 High
Published: Feb 9, 2026
Updated: Feb 10, 2026
Reserved: Feb 2, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	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	GitHub_M

Weaknesses

CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

Affected Products

Product	Versions
cmscraftcms	>= 5.0.0-RC1, < 5.8.22Affected >= 4.0.0-RC1, < 4.16.18Affected

References

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