CVE-2026-112770

HighCVSS 8.8/10Last modified Oct 22, 2026

Description

Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a remote code execution vulnerability in the Twig group filter, which invokes non-string arrow arguments as callables without the checkArrow guard used by other arrow-accepting filters. Authenticated control panel users can pass an array-callable such as FileHelper::writeToFile via element-select condition rules to write a webshell to the webroot and execute code as the web user.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-94

Affected software

VendorProductVersions
craftcmscms>= 4.0.0, < 4.18.8
craftcmscms>= 5.0.0, < 5.11.0

References

Timeline

Published
Oct 19, 2026
Last modified
Oct 22, 2026
NVD status
Deferred

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