CVE-2026-112774

HIGH 7.2

Craft CMS 5.8.0 before 5.11.0 Admin RCE via ContentBlock Field Layout

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-94
Vendor	craftcms
Product	cms
Published	Oct 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

craftcms / cms

5.8.0 < 5.11.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/craftcms/cms/security/advisories/GHSA-j6r9-fxgv-j7x5 vulncheck.com: https://www.vulncheck.com/advisories/craft-cms-5.8.0-before-5.11.0-admin-rce-via-contentblock-field-layout

Credits

🔍 manus-use