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Exploiting McDonald's APIs to hijack deliveries and order food for a penny


A series of API flaws in McDelivery India made it possible to order food for a penny, hijack other people’s delivery orders, view user information, and more.

API flaws in the McDonald’s McDelivery system in India, one of the world’s most popular food delivery apps, enabled a variety of fun exploits: What follows is an exciting experience in helping one of the world’s most iconic brands fix security problems before malicious hackers take a bite out of them. It is also worth noting that a price of 0 did not work because Juspay requires a value greater than 0 for the amount, so it wasn’t possible to order anything for free.

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