What’s Vulnerable › Vulnerabilities

CVE-2026-109305: Craft CMS 5.10.2 before 5.10.14 Twig Sandbox Bypass RCE via has some/has every

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-15
• Weakness: CWE-1336

Description

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.

Affected products

• craftcms cms: from 5.10.2 before 5.10.14 — fixed in 5.10.14

How to fix

Upgrade to a fixed version: craftcms cms 5.10.14. Check the vendor advisory for mitigations.

References

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

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