CVE-2026-112770Craft CMS before 4.18.8 and 5.11.0 Authenticated RCE via Twig group Filter Array-Callable
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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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
craftcms cms craftcms:cms (from the name) | from 4.0.0 before 4.18.8; 4.18.8 not affected | CNA record |
References
- https://github.com/craftcms/cms/security/advisories/GHSA-xmwr-88vw-5ghhvendor-advisory
- https://www.vulncheck.com/advisories/craft-cms-before-4.18.8-and-5.11.0-authenticated-rce-via-twig-group-filter-array-callablethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.