CustomPayloadFixer (BungeeCord & Bukkit/Spigot) 1.5.1

Fixes the recent exploit of CustomPayload packet that causes server to crash

  1. JustBlender
    Tested Minecraft Versions:
    • 1.8
    • 1.9
    • 1.10
    • 1.11
    Source Code:
    Requires ProtocolLib (if you're going to use this plugin on Bukkit/Spigot servers).

    Recently, a huge exploit was found with PacketPlayInCustomPayload (this packet is being used for plugin messages and "chatting" between Minecraft client and server (requesting to open a trade with villager, telling the server that client has picked up the item, etc.).

    People with hacked clients could send tons of packets requesting to change book's meta (channels MC|BSign, MC|BEdit, REGISTER), which caused server to overload and crash.

    This plugin fixes this issue by limiting the amount of packets being sent on these channels (once per 100 milliseconds) and checking for corrupted NBT tags (works only on Bukkit/Spigot servers).

    You can change what you want to do with the exploiter: dispatch a fancy /ban command (use the %name% placeholder to specify exploiters nickname in 'dispatchCommand' field in the configuration file) or kick him with a glorious message, all can be changed within the configuration file.

    Note: this plugin only supports Spigot/CraftBukkit on Minecraft versions from 1.8 to the latest versions of 1.11, newer versions do not require this plugin, since the bug has been internally fixed by the Spigot Team.

Recent Reviews

  1. Wywethpm
    Version: 1.5.1
    Liquid Bounce 1.8.9 bypass very easy!?
    Bad anti-crash plugin. Lol.
  2. leowww213122
    Version: 1.5.1
    ingles/english:The creator of the plugin has to add a support for 1.12x but they didn't add it too bad!
    Español:tiene de añadir el creador del plugin una support para la 1.12x pero no lo añadieron muy malo!
  3. LetsBrowniii
    Version: 1.5.1
    Bestes Anti-Crash, es funktioniert super. Kein Crasher kam bisher bei mir durch, ich empfehle es nur weiter! <3
  4. YoutubeJT_Playz
    Version: 1.5.1
    Your note says Spigot patched this but its happening to me on 1.14.4.
    And your plugin doesn't work on 1.14.4.
  5. iFabri_
    Version: 1.5.1
    Excellent plugin and very useful but i have a question, the player will only get kicked if he is using a cheat or maybe someone with so many lag can do this? Because i want to ban the cheater but i dont know if somone with so many lag could be kicked, i dont wanna have problems with people that says "i wasnt hacking im lagged"
  6. coolpvpv
    Version: 1.5.1
    decent it blocks the custompayload crashers theres other crashers but other then that for the custompayload it blocks it
  7. Matocolotoe
    Version: 1.5.1
    An excellent plugin to prevent naughty cheaters from crashing your server ! :)))
  8. Dennys69
    Version: 1.5.1
    It Works, use it
  9. guuhsz
    Version: 1.5.1
    Excellent plugin!

    Awesome and helpful plugin!!!

    Thankssssssssssssss so much!!!!!!!!!
  10. jonawoningsp
    Version: 1.5.1

    This Plugin works, so people cant exploit/crash your server with a hacked client!

    It really works for me!

    Version i use: 1.8.9/1.8 Spigot