Extremely simple example of an XSS attack. This case is used to see security analysis and protocols working in practice.
Install with npm
npm install
Start two servers: the server hosting the page and a malicious server.
node server/server.js
node attacker/eve.js
Then open a browser, navigate to the webpage on localhost:3000?name=John and see the name John displayed.
Now perform a penetration test on this application. Try to craft a url and make Eve listen in on the user's credentials!