◉ Official answer
🎯 The Open Door (IDOR) (Web · Level 2 · +120 XP)
An order invoice portal allows users to view their receipt using an integer query parameter. Test the authorization boundaries by manipulating object references.
Learning & Defense Goals:
- Analyze the URL structure used to fetch purchase invoices
- Modify the object reference parameter to access unassigned receipts
- Retrieve the confidential invoice containing the authorization flag
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