Description
paypal-ipn before 3.0.0 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.
Remediation
References
https://github.com/andzdroid/paypal-ipn/issues/11
https://nodesecurity.io/advisories/26
Related Vulnerabilities
CVE-2021-29485 Vulnerability in maven package io.ratpack:ratpack-session
CVE-2022-35916 Vulnerability in npm package @openzeppelin/contracts-upgradeable
CVE-2022-23532 Vulnerability in maven package org.neo4j.procedure:apoc
CVE-2020-4038 Vulnerability in maven package org.webjars.npm:graphql-playground-html