CVE-2026-109305

HIGH 8.8

Craft CMS 5.10.2 before 5.10.14 Twig Sandbox Bypass RCE via has some/has every

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1336
Vendor	craftcms
Product	cms
Published	Oct 12, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

craftcms / cms

5.10.2 < 5.10.14

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/craftcms/cms/security/advisories/GHSA-vfcw-xv8p-8rj2 vulncheck.com: https://www.vulncheck.com/advisories/craft-cms-5.10.2-before-5.10.14-twig-sandbox-bypass-rce-via-has-some-has-every

Credits

🔍 dee-see