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Lab: Bypassing access controls using email address parsing discrepancies

This lab validates email addresses to prevent attackers from registering addresses from unauthorized domains. There is a parser discrepancy in the validation logic and library used to parse email addresses.

To solve the lab, exploit this flaw to register an account and delete carlos.

Required knowledge

To solve this lab, you'll need to understand the techniques described in the Splitting the Email Atom: Exploiting Parsers to Bypass Access Controls whitepaper by Gareth Heyes of the PortSwigger Research team.