This repository contains the demo source code for the vulnerability in PUBG's Main Menu, as featured here. The issue has since been fixed, as detailed here.
A live version can be found at http://104.239.228.225/index.html.
You can visit it with a web browser, or you can fool your own PUBG into loading it by adding the following line to your hosts file:
104.239.228.225 front.battlegroundsgame.com
In a Windows Environment, the hosts file is found at %SystemRoot%\System32\drivers\etc\hosts. Removing the line from the hosts file will disable this demo.