In TOTOLINK A7000R firmware 9.1.0u.6115_B20201022, an attacker can bypass login by sending a specific request through formLoginAuth.htm.
https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/171/ids/36.html
https://gist.github.com/lin-3-start/5b20f6fbe3aa0c3fc75f320cd589182a