Hacker email disclosed on submission at hackerone hactivity

How it was found

Summary: Hi security team.

I saw this report(#2134874) yesterday and I found same information disclosure vulnerability in this report: #284143.

Check video poc inside report which name is (F234106: h1_TabNab.mp4). You can see hacker's mail in pc folders.

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When I tried to create an account with this e-mail just to be sure, I received a message that the e-mail address was already used.

Impact

Information disclosure