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

Lab: Web cache poisoning with an unkeyed cookie


This lab is vulnerable to web cache poisoning because cookies aren't included in the cache key. An unsuspecting user regularly visits the site's home page. To solve this lab, poison the cache with a response that executes alert(1) in the visitor's browser.

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