No Rate-limit on forget-password


Steps To Reproduce

  • 1 - Navigate to : https://abc.target.com/forgot-password or it could be https://abc.target.com/reset-password

  • 2 - Enter the email of the victim

  • 3 - Intercept the request in burp suite

  • 4 - Send the request to the Intruder and clear payload positions

  • 5 - Use Null payloads and set the payload count to 100

  • 6 - Start attack


Impact :

  • If the company is using any email service software API or some tool that has been bought for the emails being sent on the support domain, the rate limit can result in financial loss and it can also slow down your services as huge/mass mails will lead to disruption of data that original user might send or the quota that has been bought might be exhausted.


Mitigation :

  • 1 - IP Based Blocking

  • 2 - Captcha

  • 3 - Firewall

  • 4 - Reducing the number of API requests

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