Remote Code Execution Vulnerability in Craft CMS by Craft
CVE-2026-112770

8.7HIGH

Key Information:

Vendor

Craftcms

Status
Cms
Vendor
CVE Published:
19 October 2026

What is CVE-2026-112770?

Craft CMS versions prior to 4.18.8 and 5.11.0 are susceptible to a remote code execution vulnerability through the Twig group filter. This flaw allows authenticated users with control panel access to exploit the system by passing certain array-callables, such as FileHelper::writeToFile, into element-select condition rules. Without proper validation, this can enable the execution of arbitrary code and deployment of webshells in the webroot, potentially compromising the integrity of the application and the server.

Affected Version(s)

cms 4.0.0 < 4.18.8

cms 5.0.0 < 5.11.0

cms 4.18.8

References

https://github.com/craftcms/cms/security/advisories/GHSA-...
vendor-advisory
https://www.vulncheck.com/advisories/craft-cms-before-4.1...
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
.