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Lab: Basic SSRF against the local server


This lab has a stock check feature which fetches data from an internal system.

To solve the lab, change the stock check URL to access the admin interface at http://localhost/admin and delete the user carlos.


  1. Browse to /admin and observe that you can't directly access the admin page.
  2. Visit a product, click "Check stock", intercept the request in Burp Suite, and send it to Burp Repeater.
  3. Change the URL in the stockApi parameter to http://localhost/admin. This should display the administration interface.
  4. Read the HTML to identify the URL to delete the target user, which is:

  5. Submit this URL in the stockApi parameter, to deliver the SSRF attack.

Community solutions

Rana Khalil
Michael Sommer (no audio)