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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 19 Oct 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Craftcms cms
Vendors & Products Craftcms cms

Mon, 19 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
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.
Title Craft CMS 5.8.0 before 5.11.0 Admin RCE via ContentBlock Field Layout
First Time appeared Craftcms
Craftcms craft Cms
Weaknesses CWE-94
CPEs cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
Vendors & Products Craftcms
Craftcms craft Cms
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-19T19:10:52.576Z

Reserved: 2026-10-19T18:10:49.940Z

Link: CVE-2026-112774

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-19T20:17:54.620

Modified: 2026-10-19T20:59:50.503

Link: CVE-2026-112774

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T21:00:04Z

Weaknesses