paypal-integration

This is a legitimate-looking PayPal integration example with no apparent malware or supply-chain attack behavior. The principal risks are implementation weaknesses in IPN payload reconstruction and validation, insufficient binding of verified payments to internal orders, missing visible idempotency for refunds and chargebacks, and weak HTTP error/timeout handling. These issues should be corrected before production use, especially by verifying the raw IPN request according to PayPal requirements and independently validating amount, currency, merchant identity, transaction state, and order association.