Remote Code Execution Vulnerability in Craft CMS Affects Authenticated Administrators
CVE-2026-112774

8.7HIGH

Key Information:

Vendor

Craftcms

Status
Cms
Vendor
CVE Published:
19 October 2026

What is CVE-2026-112774?

Craft CMS versions prior to 5.11.0 have a flaw that allows authenticated administrators to perform remote code execution. By manipulating a JSON-string field layout in the ContentBlock::setFieldLayout() function, attackers with allowAdminChanges enabled can inject malicious Yii behaviors. This vulnerability bypasses the sanitize function (cleanseConfig()) and grants the capability to execute operating system commands as the web server user, potentially leading to the exposure of sensitive information.

Affected Version(s)

cms 5.8.0 < 5.11.0

cms 5.11.0

References

https://github.com/craftcms/cms/security/advisories/GHSA-...
vendor-advisory
https://www.vulncheck.com/advisories/craft-cms-5.8.0-befo...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

manus-use
.