U.S. Dept Of Defense: IDOR when editing email leads to Mass Full ATOs (Account Takeovers) without user interaction on https://██████/

Dear DoD team, I found one critical bug on your domain: https://██████/ It's IDOR. Also this domain is from Hack US program. What is that IDOR? Insecure direct object references IDOR are a type of access control vulnerability that arises when an application uses user-supplied input to access...