How i was able to bypass a Pin code Protection

Info about the target

it’s a financial company that provides virtual and physical cards

full story

so I after some recon and understanding the target well I found a function for creating the virtual and the physical card and I found that’s when you create a virtual card you can read card details without any other steps



so basically bypass the PIN code protection by using the virtual card activate request in the physical card by replacing the card uuid!

Tips for Pentester

always read js files and analyze it.
and literally, click on every button/ function you can find and read the requests and think what you can do with this, this is how you can build a hacker mindset :)



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Kerolos sameh (xko2x)

Kerolos sameh (xko2x)

I’m a 17 y.o Bug hunter || Security Researcher at Hackerone