Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui configuration improperly handles URL-encoded traversal sequences. When specially crafted paths are supplied, the backend resolves them to the base Nginx configuration directory and executes the operation on the base directory (/etc/nginx). In particular, this allows an authenticated user to remove the entire /etc/nginx directory, resulting in a partial Denial of Service. This issue has been patched in version 2.3.4.

Nginx Configuration Directory Vulnerable to Recursive Deletion via Improper Path Validation

Уязвимость пользовательского интерфейса Nginx UI сервера nginx, позволяющая нарушителю вызвать отказ в обслуживании