There is a CSRF vulnerability in the mndpsingh287 File Manager plugin 3.0 for WordPress via the page=wp_file_manager_root public_path parameter.
https://wpvulndb.com/vulnerabilities/9614
https://wordpress.org/plugins/wp-file-manager/#developers
https://ansawaf.blogspot.com/2019/04/file-manager-plugin-wordpress-plugin.html