CVE-2026-112770

Craft CMS before 4.18.8 and 5.11.0 Authenticated RCE via Twig group Filter Array-Callable

Published Oct 19, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Craftcms cms
Vendors & Products Craftcms cms
Type Values Removed Values Added
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.
Title Craft CMS before 4.18.8 and 5.11.0 Authenticated RCE via Twig group Filter Array-Callable
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': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 22, 2026, 8:59 PM
Reserved
Oct 19, 2026, 6:10 PM
Status
Deferred
Published
Oct 19, 2026, 8:17 PM
Modified
Oct 22, 2026, 9:17 PM