The File Manager Pro plugin for WordPress is vulnerable to Limited JavaScript File Upload in all versions up to, and including, 8.3.9. This is due to a lack of proper checks on allowed file types. This makes it possible for unauthenticated attackers, with permissions granted by an administrator, to upload .css and .js files, which could lead to Stored Cross-Site Scripting.

The File Manager Pro plugin for WordPress is vulnerable to arbitrary backup file downloads and uploads due to missing file type validation via the 'mk_file_folder_manager_shortcode' ajax action in all versions up to, and including, 8.3.9. This makes it possible for unauthenticated attackers, if granted access to the File Manager by an administrator, to download and upload arbitrary backup files on the affected site's server which may make remote code execution possible.

The File Manager Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 8.3.9. This is due to missing or incorrect nonce validation on the 'mk_file_folder_manager' ajax action. This makes it possible for unauthenticated attackers to upload arbitrary files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The File Manager plugin for WordPress is vulnerable to authorization bypass due to a missing capability check in the /inc/root.php file in versions up to, and including, 3.0. This makes it possible for unauthenticated attackers to download arbitrary files from the server and upload arbitrary files that can be used for remote code execution.

The File Manager Pro plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 8.3.4 via the mk_check_filemanager_php_syntax AJAX function. This makes it possible for authenticated attackers, with subscriber access and above, to execute code on the server. Version 8.3.5 introduces a capability check that prevents users lower than admin from executing this function.

There is an XSS vulnerability in the mndpsingh287 File Manager plugin 3.0 for WordPress via the page=wp_file_manager_root public_path parameter.

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.

The mndpsingh287 File Manager plugin V2.9 for WordPress has XSS via the lang parameter in a wp-admin/admin.php?page=wp_file_manager request because set_transient is used in file_folder_manager.php and there is an echo of lang in lib\wpfilemanager.php.