On Netis DL4323 devices, XSS exists via the form2userconfig.cgi username parameter (User Account Configuration).
https://fatihhcelik.blogspot.com/2019/12/stored-xss-on-username-input-netisdl4323.html
https://drive.google.com/open?id=1puObYuPWktesaVW1SO8uvSr1g4SnAtAw
https://drive.google.com/open?id=1CxLrSKAczEZpm_7FERIrCGGJAs2mp6Go