Deactivate and delete. This plugin has been closed as of July 8, 2022 and is not available for download. This closure is temporary, pending a full review.
Raad Haddad discovered and reported this Arbitrary File Download vulnerability in WordPress WSM Downloader Plugin. This could allow a malicious actor to download any file from your website. This includes but is not limited to files that contain login credentials or backup files. This vulnerability has not been known to be fixed yet.