How secure is WebDAV?

WebDAV, a popular HTTP extension, is one of the best transfer protocols on the web. As the protocol has been around for over two decades, it has become quite useful for hackers. It is susceptible to easy exploitation, but it is normally more versatile and efficient than the likes of SFTP and FTP.
With the right security, WebDAV can be incredible. Secure WebDAV resources can be built using two-factor authentication, Apache, encrypted transmission, SSL, and other resources from a range of different systems. Highly secure WebDAV resources can be set up on every type of operating system.