CVE-2026-112774

High

Description

Craft CMS from 5.8.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated administrators to inject Yii behaviors by supplying a JSON-string field layout to ContentBlock::setFieldLayout(). Attackers with allowAdminChanges enabled can include 'as X' or 'on X' keys that bypass cleanseConfig() to execute OS commands as the web user and disclose secrets.

SeverityHigh

CVSS7.2

Exploit probability—

ProductCms

PublishedOct 19, 2026

First seenOct 19, 2026

Weakness typeCWE-94Code injection

How to fix

Update

craftcms cms5.11.0 or later

Vendor advisories

github.com/craftcms/cms/security/advisories/GHSA-j6r9-fxgv-j7x5

Affected products

Product	Affected versions	Fixed in
craftcms cms	5.8.0 ≤ v < 5.11.0	5.11.0

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