The Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin before 1.3.9.9 does not escape one of its settings before using it as an HTML tag name in front-end output, allowing users with administrator access to inject arbitrary web scripts that execute on any front-end page rendering its upload field.
https://wpscan.com/vulnerability/fc723849-62d3-4c87-a0ad-5e5354961303/