Description

Craft CMS is a content management system (CMS). From version 5.6.0 to before version 5.9.13, a Remote Code Execution (RCE) vulnerability exists in Craft CMS, it can be exploited by any authenticated user with control panel access. This is a bypass of a previous fix. The existing patches add cleanseConfig() to assembleLayoutFromPost() and various FieldsController actions to strip Yii2 behavior/event injection keys ("as" and "on" prefixed keys). However, the fieldLayouts parameter in ElementIndexesController::actionFilterHud() is passed directly to FieldLayout::createFromConfig() without any sanitization, enabling the same behavior injection attack chain. This issue has been patched in version 5.9.13.

INFO

Published Date :

2026-03-24T17:22:00.966Z

Last Modified :

2026-03-24T18:19:46.591Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33157 vulnerability.

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CVSS Vulnerability Scoring System

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SS Confidentiality
SS Integrity
SS Availability