Craft CMS has potential authenticated Remote Code Execution via Twig SSTI

CAO 7.2CVE-2026-28784 · GHSA-qc86-q28f-ggww · Công bố 04/03/2026 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2026-28784 là lỗ hổng mức CAO (CVSS 7.2) ảnh hưởng craftcms/cms, craft cms (craftcms).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.59%, cao hơn 48.1% các lỗ hổng khác.
Cách xử lý: cập nhật lên 4.17.0-beta.1, 5.9.0-beta.1, 4.17.0, 5.9.0 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
craftcms/cms Packagist	`≥ 4.0.0-RC1, < 4.17.0-beta.1≥ 5.0.0-RC1, < 5.9.0-beta.1`	`4.17.0-beta.15.9.0-beta.1`
craft cms craftcms	`= 4.0.0= 5.0.0> 4.0.0, < 4.17.0> 5.0.0, < 5.9.0`	`4.17.05.9.0`

Mô tả

For this to work, the attacker must have administrator access to the Craft Control Panel, and allowAdminChanges must be enabled, 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, they can have a non-administrator account with allowAdminChanges disabled, but they must have access to the System Messages utility.

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 (5.8.22 and 4.16.18) to mitigate the issue.

References:

https://github.com/craftcms/cms/pull/18208

Mô tả của NVD

Craft is a content management system (CMS). Prior to 5.8.22 and 4.16.18, 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. For this to work, you must have administrator access to the Craft Control Panel, and allowAdminChanges must be enabled for this to work, which is against our recommendations for any non-dev environment. Alternatively, you can have a non-administrator account with allowAdminChanges disabled, but you have access to the System Messages utility. Users should update to the patched versions (5.8.22 and 4.16.18) to mitigate the issue.