How I Bought a $400 Jacket for Free Using a Business Logic Flaw
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A bug bounty write-up demonstrating a business logic flaw in an e-commerce platform where stacking two promotional coupons (a new customer discount and a newsletter signup coupon) resulted in a $0 cart total for a ~$1400 jacket. The application failed to validate cumulative discount amounts or restrict coupon combinations,
Table of contents
🎯 Target Overview🧠 Initial TestingGet Aashif’s stories in your inbox💥 Exploitation: Coupon Stacking Logic Flaw🛒 Order Placement📉 Impact🏁 Final ThoughtsSort: