LayerBB 1.1.2 Cross Site Scripting

`# Exploit Title: LayerBB 1.1.2 - Cross-Site Scripting  
# Date: 11/19/2018  
# Author: 0xB9  
# Twitter: @0xB9Sec  
# Contact: 0xB9[at]pm.me  
# Software Link: https://forum.layerbb.com/downloads.php?view=file&id=28  
# Version: 1.1.2  
# Tested on: Ubuntu 18.04  
# CVE: CVE-2019-7688  
  
  
1. Description:  
LayerBB is a free open-source forum software. The 2 XSS's found allows users to input a payload to Custom Profile Fields and the polls question & answers input via a new thread.  
  
  
2. Proof of Concept:  
  
PoC - Polls QnA  
- Start a new thread  
- Use a payload in the polls QnA input boxes <script>alert('XSS')</script>  
- Anyone who views the thread will execute payload  
  
PoC - Custom Profile Fields  
- Create a Custom Profile Field in ACP  
- Then use an account from any usergroup & edit profile  
- Input a payload in the bottom "Additional Profile Fields" textbox <script>alert('XSS')</script>  
- Anyone who views your profile will execute payload  
  
  
  
3. Solution:  
Update to 1.1.3  
`