Update the WordPress Drag and Drop Multiple File Upload – Contact Form 7 plugin to the latest available version (at least 1.3.6.6).
Lana Codes discovered and reported this Cross Site Request Forgery (CSRF) vulnerability in WordPress Drag and Drop Multiple File Upload – Contact Form 7 Plugin. This could allow a malicious actor to force higher privileged users to execute unwanted actions under their current authentication. This vulnerability has been fixed in version 1.3.6.6.