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

Craft is a platform for creating digital experiences. Versions 5.0.0-RC1 through 5.8.20 and 4.0.0-RC1 through 4.16.16 are vulnerable to potential authenticated Remote Code Execution via Twig SSTI. For this to work, users 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. 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.

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CWE-1336

Craft CMS 安全漏洞

Craft CMS是Craft CMS开源的一套内容管理系统（CMS）。 Craft CMS 5.0.0-RC1版本至5.8.20版本和4.0.0-RC1版本至4.16.16版本存在安全漏洞，该漏洞源于Twig模板输入处理不当，可能导致经过身份验证的远程代码执行。

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