GHSA-742x-x762-7383

Craft CMS vulnerable to potential authenticated Remote Code Execution via Twig SSTI

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-68454

Packages

Ecosystem	Package	Affected	Fixed in
Packagist	craftcms/cms	>= 5.0.0-RC1, < 5.8.21	5.8.21
Packagist	craftcms/cms	>= 4.0.0-RC1, < 4.16.17	4.16.17

Details

As written in the advisory (Markdown source, shown as plain text).

For this to work, users must have administrator access to the Craft Control Panel, and [allowAdminChanges](https://craftcms.com/docs/5.x/reference/config/general.html#allowadminchanges) must be enabled for this to work, which is against Craft CMS' recommendations for any non-dev environment. https://craftcms.com/knowledge-base/securing-craft#set-allowAdminChanges-to-false-in-production Alternatively, a non-administrator account with allowAdminChanges disabled can be used, provided access to the System Messages utility is available. It is possible to craft a malicious payload using the Twig `map` filter in text fields that accept Twig input under Settings in the Craft control panel or using the System Messages utility, which could lead to a RCE. Users should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue. References: https://github.com/craftcms/cms/commit/d82680f4a05f9576883bb83c3f6243d33ca73ebe https://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04

References

External links from the advisory. They lead to third-party sites.