Hi, everyone, Spigotlib has been removed from Spigot for this reason:
SpigotLib Contains malicious code: A config option (allowAllPermsForAuthor) which is enabled by default and gives the author rights to execute any of his plugin's commands ignoring any permission checks.
https://github.com/gyurix/SpigotLib/blob/master/src/main/resources/config.yml#L22
You should not download this ressource or disable this functionnality. This thing should be disable by default....