Validation Bypass Affecting paypal-ipn Open this link in a new tab package, versions <3.0.0

  • Attack Complexity


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  • snyk-id


  • published

    3 Dec 2014

  • disclosed

    3 Dec 2014

  • credit

    Martin Angelov

How to fix?

Upgrade to version 3.0.0 or greater.


paypal-ipn uses the test_ipn parameter (which is set by the PayPal IPN simulator) to determine if it should use the production PayPal site or the sandbox.

"With a bit of time, an attacker could craft a request using the simulator that would fool any application which does not explicitly check for test_ipn in production." [1]

Source: Node Security Project