Vulnerability · Published Oct 19, 2026 · Assigned by VulnCheck
CVE-2026-112772Craft CMS 5.0.0 before 5.11.0 RCE via Asset::getMimeType Transform Injection
High 8.8
In plain English
A high-severity code injection 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 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 46.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Craft CMS from 5.0.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated Control Panel users to escape the Twig sandbox via Asset::getMimeType transforms. Attackers can supply 'as' or 'on' keys passed unfiltered to Craft::createObject, attaching malicious behaviors or event handlers that execute code as the web user.
Affected products (as reported)
Weakness: CWE-94 · 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-qm9x-rmcj-h2rc) vendor-advisory
- VulnCheck Advisory: Craft CMS 5.0.0 before 5.11.0 RCE via Asset::getMimeType Transform Injection third-party-advisory