[False report] Hacked - MyBB has a exploit?

[Omar G.]

The hackers used some sort of exploit in MyBB. I had all addons disabled at the time, so it could not be a addon(plugin).

Plugins don't really need to be deactivated in order to be a risk to your board (if those were wrote with the primary intention to harm you anyways).

The error you post seems like one I noticed in my forum just some days ago and it is back just now.