Help fixing html5 chats with redis token

Job ID: 34448326

Budget: $250 – $750 USD

My friends html5 chat rooms are being hacked cause of the xss and patches are not updated/not there to stop them. I got screenshots of examples of the issue. Also they are using discord somehow to hack the chats as well. We need help asap. Thanks
Related categories: PHP JavaScript CSS HTML5 Socket IO