Hi everyone , I have found this bug on a public program on h1 some times back.

The website is having a registration process in which you have to fill your phone number to be able to register.

After providing phone number, email, username & details , you have to verify the phone number by giving 6 digit OTP code for successful verification.

After providing 6 digit OTP ,and verifying the captcha service and then hit register and intercepted this request.

So i just intercepted this POST Register request in burp and then started playing with this request’s parameters.


Prasoon Gupta

Appsec Engineer | Bug Bounty Hunter

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