The way the report was written, I suspect this was another open Gitlab server.

Most people who self-host Gitlab doesn't realize that between the default self-registration and "Explore" button at the bottom, possible for entirely random individuals to gain enormous access.

I have written the Naval Postgraduate School several times since December about their open Gitlab server (maybe it is supposed to be open though) which seems exposed via the "Explore" tab at the bottom: https://204.102.228.54/users/sign_in