CVE-2026-28784

描述

For this to work, the attacker 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, 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

如何修補 CVE-2026-28784

要修補 CVE-2026-28784,請將受影響套件升級到下列已修補版本。

• —升級至 5.9.0-beta.1 或更新版本

CVE-2026-28784 正在被利用嗎?

低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 5.0.0-RC1, < 5.9.0-beta.1

CVSS 分數

參考連結(5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-28784
• PATCHgithub.com/craftcms/cms
• WEBcraftcms.com/knowledge-base/securing-craft#set-allowAdminChanges-to-false-in-production
• WEBgithub.com/craftcms/cms/pull/18208