How I accidentally hacked many companies using N/A vulnerability in Atlassian Cloud

Below you will learn in detail about the discovered vulnerability that allowed me to get about 15000$ in bounty with all secrets from the Atlassian cloud. This story happened about a year ago. And I did not publish it immediately for ethical reasons.

It all started the day my friend and I decided to look for vulnerabilities of a company with a big scope at Hackerone. The company allows critical vulnerabilities outside of the scope. And the first thing that came to mind was to look for…