An issue was found on TRENDnet TEW-831DR 1.0 601.130.1.1356 devices. The username and password setup for the web interface does not require entering the existing password. A malicious user can change the username and password of the interface.
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.