1. Web Security Academy
  2. Cross-site scripting
  3. CSP
  4. Lab

Lab: Reflected XSS protected by CSP, with dangling markup attack


This lab uses CSP to mitigate against XSS attacks.

To solve the lab, perform a dangling markup attack that steals a CSRF token and uses it to change the email address of another user.

You can log in to your own account using the following credentials: wiener:peter


To prevent the Academy platform being used to attack third parties, our firewall blocks interactions between the labs and arbitrary external systems. To solve the lab, you must use the provided exploit server and/or Burp Collaborator's default public server (burpcollaborator.net).