On Netis DL4323 devices, XSS exists via the form2Ddns.cgi username parameter (DynDns settings of the Dynamic DNS Configuration).
https://fatihhcelik.blogspot.com/2019/12/stored-xss-on-username-input-2-netis.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-10632
https://drive.google.com/open?id=1i5gIrJRy5L7lTIsYZp9GsvR8ZGCWtnMj
https://drive.google.com/open?id=1HrYqVKlSxhQqB5tNhhLIgpyfi0Y2ZL80