Invision Power Board (IP.Board) 4.1.4.x – Persistent Cross-Site Scripting
# Exploit Title: IP.Board Persistent XSS Vulnerability # Date: 29/10/2015 # Software Link: https://www.invisionpower.com/buy # Software version : 4.1.4.x # Exploit Author: Mehdi Alouache # Contact: mehdi.alouache@etu.univ-lehavre.fr # Category: webapps 1. Description Any registered user can execute remote javascript code by sending a private message to another user. The malicious JS code has to be written in the title of the message, and the receiver must have enabled the notifications when a new message is delivered. Note that the code will be directly executed as soon as the notification appear. (The receiver doesn't even need to check his inbox). 2. Proof of Concept Register on the forum (IP.Board) of a website as a regular user, and send a message to any user having the message notifications enabled. In the title field (and only here), a simple <script>alert(1)</script> will show a dialog box to the victim. 3. Solution: Patch the vulnerability with the (incoming) associated patch. -- ALOUACHE Mehdi Departement informatique Groupe A mehdi.alouache@hotmail.fr mehdi.alouache@etu.univ-lehavre.fr |