Multiverse exploit FIXED

[ConstructorLeo]

Information

• Server version: Airplane version git-Airplane-11 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)

• Full output of /mv version -p:
  https://paste.gg/p/anonymous/ba335ec596e74456b6d4331600ee4217

• Server log:
  I can only give the portion of the log that relates to the error.
  REDACTED

Details

I was able to reproduce my issue on a freshly setup and up-to-date server with the latest version of Multiverse plugins with no other plugins and with no kinds of other server or client mods.

Description
Upon typing a Multiverse command a player can crash a server.

Steps to reproduce
Simply type /mv __REDACTED__ into chat.

Expected behavior
Does not crash the server.

Screenshots
SCREENSHOT REDACTED

[benwoo1110]

9ce2dfd

[benwoo1110]

For those that see this issue, we have fixed it so JUST UPDATE: https://www.spigotmc.org/resources/multiverse-core.390/update?update=424085

We have also noted that some people are unable to update for whatever reason. Then just grab the patch: https://www.spigotmc.org/resources/multiverse-patches.96390/ (Tho we still recommend you ultimately update mv)