CrushedPixel quickly reported the exploit to Mojang in MC-75630 9) and Mojang patched the OP-Sign exploit on 10), by releasing Java Edition 1.8.6. The exploit behind OP-Sign was originally discovered by CrushedPixel on 5) 6) 7), who also created the first mod to ever take advantage of the exploit 8).

Survival Mode support for the feature was added by Alexander01998 on Septem4) and then released in Wurst 2.5. The initial version, released in Wurst 1.15, only worked in Creative Mode. OP-Sign was originally created by Alexander01998 on J1), three weeks after the OP-Sign exploit had already been patched through Minecraft 1.8.6 2) 3). A server running Minecraft 1.8 - 1.8.5 without Spigot is required in order for OP-Sign to work.

OP-Sign allows the user to execute commands like /op by simply placing a sign and then right-clicking on it. Only works on servers running Minecraft 1.8 - 1.8.5 without Spigot! “Enable this mod, place a sign and click it to get OP.Ĭan also be used to run any other command.

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