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BACKEND-DEVELOPMENT5 MIN READ

Sort API Security Risks

Match API security symptoms to object, property, function, and resource-consumption controls.

Sort each API issue by the primary control it needs. Object authorization Property allowlist Function authorization Resource limits User changes /invoices/100 to /invoices/101 and sees another tenant's invoice A read-only project member can call POST /projects/{id}/archive directly Request body includes role=admin and the ORM writes it to the user row Team member response includes salary_band for non-HR callers Unauthenticated export endpoint can generate 20 GB reports repeatedly User can delete a file by guessing another workspace's file ID A valid user can send 50,000 invite emails in one request Non-admin token can access /admin/reindex because route checks only login

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