Vulnerability in Craftcms Cms
CVE-2026-109305
Craft CMS from 5.10.2 before 5.10.14 contains a Twig sandbox bypass that allows non-admin users to invoke PHP callables through the "has some" and "has every" operators. Users with the System Messages permission can supply two-argument callables such as passthru or system in sandboxed templates to execute code as the web user.
Published .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/craftcms/cms/security/advisories/GHSA-vfcw-xv8p-8rj2 (vendor-advisory)
- www.vulncheck.com/advisories/craft-cms-5.10.2-before-5.10.14-twig-sandbox-bypas… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109305?
- CVE-2026-109305 is a high-severity vulnerability in Craftcms Cms, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 8.8/10. Published 2026-10-12.
- How severe is CVE-2026-109305?
- High severity. CVSS v3 base score is 8.8 out of 10.