WPvivid Backup and Migration Plugin < 0.9.69 - Unauthenticated Stored Cross-Site Scripting

The Migration, Backup, Staging WordPress plugin before 0.9.69 does not have authorisation when adding remote storages, and does not sanitise as well as escape a parameter from such unauthenticated requests before outputting it in admin page, leading to a Stored Cross-Site Scripting issue