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.
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Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 19 Oct 2026 19:30:00 +0000
| 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
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-19T19:10:49.743Z
Reserved: 2026-10-19T18:10:49.940Z
Link: CVE-2026-112770
No data.
Status : Deferred
Published: 2026-10-19T20:17:54.060
Modified: 2026-10-19T20:59:50.503
Link: CVE-2026-112770
No data.
OpenCVE Enrichment
Updated: 2026-10-19T20:30:03Z
Weaknesses