XSS exists in cgi-bin/webcm on D-link DSL-2640T routers via the var:RelaodHref or var:conid parameter.
- https://cxsecurity.com/issue/WLB-2018100107
- https://packetstormsecurity.com/files/149785/D-Link-DSL-2640T-Cross-Site-Scripting.html
No PoCs found on GitHub currently.