Two Minecraft users, usernames Averie & 1nstagram exploited an issue with LuckPerms to spoof a comment from another user to improperly elevate their own permissions and cause further damage to the server.
There are several channels all showcasing the same potential exploit.
Relevant to our case:
Other channels:
GMT 21:12:31 (Aevrie)-
/glist
/discord
/discordsrv
GMT 21:13:06 (Aevrie)-
/cmi
/p
/pl
/about SignedVelocity
GMT 21:13:39 (Aevrie)-
/ban
GMT 21:14:05 (Aevrie)-
/bal
/baltop
GMT 21:15:01 (Aevrie)-
/server
/baltop
/pay
/bal
/spawn