MyBB Plugin Downloads 2.0.3 – Cross-Site Scripting
# Exploit Title: MyBB Downloads Plugin v2.0.3 - Persistent XSS # Date: 3/28/18 # Author: 0xB9 # Contact: luxorforums.com/User-0xB9 or 0xB9[at]protonmail.com # Software Link: https://community.mybb.com/mods.php?action=view&pid=854 # Version: 2.0.3 # Tested on: Ubuntu 17.10 1. Description: It is a plugin which adds a page to download files. If enabled, regular members can add new downloads to the page after admin approval. 2. Proof of Concept: Persistent XSS - Go to downloads.php page - Create a New Download - Add the following to the title <BODY ONLOAD=alert('XSS')> - Now when the admin goes to validate your download he will be alerted 3. Solution: Update to the latest release Patch: https://github.com/vintagedaddyo/MyBB_Plugin-Downloads/pull/1/commits |