D-Link DIR-600M Wireless - Cross-Site Scripting

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# Exploit Title: D-Link DIR-600M Wireless - Persistent Cross Site Scripting
# Date: 11.02.2018
# Vendor Homepage:  http://www.dlink.co.in
# Hardware Link: http://www.dlink.co.in/products/?pid=DIR-600M
# Category: Hardware
# Exploit Author: Prasenjit Kanti Paul
# Web: http://hack2rule.wordpress.com/
# Hardware Version: C1
# Firmware version: 3.01
# Tested on: Linux Mint
# CVE: CVE-2018-6936
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Reproduction Steps:

   - Goto your wifi router gateway [i.e: http://192.168.0.1]
   - Go to --> "Maintainence" --> "Admin"
   - Create a user with name "<script>alert("PKP")</script>"
   - Refresh the page and you will be having "PKP" popup

Note: It can also be done by changing SSID name to "<script>alert("PKP")</script>"