This was the crux of the OSWE mindset. The vulnerability wasn't in the upload ; it was in the export feature. The application allowed users to bundle multiple invoices into a single archive and download them. Kiran had noticed a peculiar parameter in the API call: export_path .

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The "portable" nature of this expertise isn't just about having a PDF on your tablet; it's about the you carry in your toolkit. A key requirement for the OSWE is the ability to write custom Python scripts to automate your entire exploit chain. By the time you finish, your "manual" findings are transformed into a single, portable script that can compromise a target in seconds. 4. The Exam: A 48-Hour Marathon