MyBB Recent Threads 1.0 Cross Site Scripting

2018.06.05
Credit: 0xB9
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79

# Exploit Title: MyBB Recent Threads Plugin v1.0 - Cross-Site Scripting # Date: 6/2/2018 # Author: 0xB9 # Twitter: @0xB9Sec # Contact: 0xB9[at]pm.me # Software Link: https://community.mybb.com/mods.php?action=view&pid=842 # Version: 1.0 # Tested on: Ubuntu 18.04 # CVE: CVE-2018-11715 1. Description: Creates a page that shows threads that the user has posted in when they have unread replies. 2. Proof of Concept: - Create or reply to a thread with the following subject <script>alert('XSS')</script> - When someone replies to the thread you will see the alert here /misc.php?action=myrecentthreads 3. Solution: Update to 1.1


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