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

Lab: Combining web cache poisoning vulnerabilities


This lab is susceptible to web cache poisoning, but only if you construct a complex exploit chain.

A user visits the home page roughly once a minute and their language is set to English. To solve this lab, poison the cache with a response that executes alert(document.cookie) in the visitor's browser.