[OPENMEETINGS-1379] XSS in Chat window leading to DOS

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.1.0, 3.1.1, 3.1.2
• Fix Version/s: 3.1.2, 3.2.0, 4.0.0
• Component/s: UI
• Labels: security
• Flags: Important
• External issue URL: https://om.alteametasoft.com/openmeetings/
• Assignee: Maxim Solodovnik
• Reporter: Subho Halder
• Created: 26/Apr/16 13:00
• Updated: 01/Feb/19 14:58
• Resolved: 26/Apr/16 14:55

Description

The chat window can execute XSS payloads, thus one can infect all the users who have joined the room/meeting. The XSS is persistent and that can lead to Denial of Service.

A simple popup which alerts 9 can make it hard for other user to use it.

One can check the POC by trying to log-in at the demo server provided: https://om.alteametasoft.com/openmeetings/