Mybb trending widget plugin 1.2 crosssite scripting Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-02-01 | Type : webapps | Platform : php
This exploit / vulnerability Mybb trending widget plugin 1.2 crosssite scripting is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# Exploit Title: MyBB Trending Widget Plugin 1.2 - Cross-Site Scripting
# Date: 11/28/2018
# Author: 0xB9
# Software Link: https://github.com/zainali99/trends-widget
# Version: 1.2
# Tested on: Windows 10

1. Description:
This plugin shows the most trending threads. Trending thread titles aren't sanitized to user input.

2. Proof of Concept:

- Have a trending thread in the widget
- Change the thread title to a payload <script>alert('XSS')</script>
Anyone that visits the forum will execute payload