High severity · published Oct 19, 2026
CVE-2026-112774
Craft CMS 5.8.0 before 5.11.0 Admin RCE via ContentBlock Field Layout
7.2
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
cms · craftcms
5.8.0 before 5.11.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-112774
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-112774
github.com
https://github.com/craftcms/cms/security/advisories/GHSA-j6r9-fxgv-j7x5
www.vulncheck.com
https://www.vulncheck.com/advisories/craft-cms-5.8.0-before-5.11.0-admin-rce-via-contentblock-field-layout
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