GetSimple CMS is a content management system. In versions starting from 3.3.16 to 3.3.21, an authenticated user with access to the Edit component can inject arbitrary PHP into a component file and execute it via a crafted query string, resulting in Remote Code Execution (RCE). This issue is set to be patched in version 3.3.22.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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