0/10 succesful attempts for mimo v2.5 pro (high) using opencode. It was not able to think bigger than exploiting vectors outside of the API.
However, I felt the prompt was implying that only authenticated API requests are fair game, so I tweaked it slightly to be explicit that all attack vectors are fair game (https://www.diffchecker.com/GsgpuRGP/) and mimo 2.5 non-pro got it first time. I accidentally used openrouter for this test instead of my token plan. I intervened one time to stop it enumerating every document in the database (it would've found the private reviews this way but I didn't want to wait). My intervention was "are you really going to enumerate the whole database?". Final openrouter cost: $0.12