Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck
CVE-2026-109305Craft CMS 5.10.2 before 5.10.14 Twig Sandbox Bypass RCE via has some/has every
High 8.8
In plain English
A high-severity security flaw in cms from craftcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 58.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
Weakness: CWE-1336 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-vfcw-xv8p-8rj2) vendor-advisory
- VulnCheck Advisory: Craft CMS 5.10.2 before 5.10.14 Twig Sandbox Bypass RCE via has some/has every third-party-advisory