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CVE-2026-25498GHSA-7JX7-3846-M7W7

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.8.22, 4.16.18
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • craftcms cms

    From 5.0.0-RC1 · fixed in 5.8.22; From 4.0.0-RC1 · fixed in 4.16.18

  • craftcms/cmsPackagist

    From 5.0.0-RC1 · fixed in 5.8.22

  • craftcms/cmsPackagist

    From 4.0.0-RC1 · fixed in 4.16.18

References 3

GitHub · craftcms/cms