1. Web Security Academy
  2. Web cache poisoning
  3. Exploiting cache implementation flaws
  4. Lab

Lab: Web cache poisoning via an unkeyed query string


This lab is vulnerable to web cache poisoning because the query string is unkeyed. A user regularly visits this site's home page using Chrome.

To solve the lab, poison the home page with a response that executes alert(1) in the victim's browser.