🛡️ CVE-2026-33157
🟠 CVSS 8.0 — High ⚠️ Exploit Public CWE-470 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE CWE-470
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-24
Updated 2026-06-02
Modified 2026-03-26

Affected Packages

Software From version Fixed in
craft-cms 5.6.0 5.9.13
craftcms/cms 5.6.0 5.9.13

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