Adobe bug bounty using IDOR, Confidential data leaks

INTRO: Beginner’s Nightmare

This was my first-month doing bug bounty hunting and if you don’t know it already I took up a 6 months challenge. I'm from a network penetration background so I basically sucked in the web apps. In my first month, I spent every day listening to all the good lectures by the bug crowd and reading a ton of books such as OWASP Testing guide. The theory is different from practical and I was basically lost. I decided to leave my pending work and focus deeply. I spent countless hours looking for bugs but everything was to no avail. I found some low-hanging fruits using tools but never reported them. Male Ego I guess. Then comes the light at the end of the tunnel.

The climax:

I visit the document URL, now I find a usual document, nothing interesting but then i looked at the URL, it had document/200, I changed that 200 to 201 but nothing happened so maybe no IDOR? I sent the request to burp>Intruder> use 100–1000 as payload set and fuzz the document/$200$, BOOM! here's the response. But now the question is, are the files really confidential? So turns out yes, not only documents but highly critical internal data is also leaked.

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CEH(Practical),Red Teamer/BBHH. Have hacked Governments to fortune 500 companies/UN. Hunt of CVEs occasionally with my team.CVE-2022-30076. Bookworm