MyBB Bans List 1.0 Cross Site Scripting

`# Exploit Title: MyBB Bans List - Cross Site Scripting  
# Date: 7/25/2018  
# Author: 0xB9  
# Twitter: @0xB9Sec  
# Contact: 0xB9[at]pm.me  
# Software Link: https://community.mybb.com/mods.php?action=view&pid=423  
# Version: 1.0  
# Tested on: Ubuntu 18.04  
# CVE: CVE-2018-14724  
  
  
1. Description:  
Adds bans.php page, showing a list of banned users and the reason of ban.   
  
Any forum user that's a mod can ban users and input a payload into the ban reason which gets executed on the bans.php page.  
  
  
2. Proof of Concept:  
  
- Have a mod account  
- Ban a user  
- Input the following for reason of the ban <script>alert('XSS')</script>  
- Anyone to view page will execute payload  
`