Drag and Drop File Upload for Elementor Forms <= 1.6.2 - Unauthenticated Arbitrary File Deletion via 'form_fields[upload]' Parameter

The Drag and Drop File Upload for Elementor Forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the remove_files function in all versions up to, and including, 1.6.2 This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). This vulnerability is reachable when the "yeepdf_not_save" privacy option is enabled, a commonly used production setting that triggers the remove_files() cleanup path.