If you want to learn scripting and game creation on Roblox:
: The executor finds a vulnerability in the game's code—usually a poorly secured RemoteEvent —to send its own code to the server for execution. Limited Access
Here is a review of the reality of using free serverside executors in the current Roblox environment. The Reality of "Free" Serverside Executors
Once a user joins a "backdoored" game, the executor sends code through these open events to be executed by the server. Visibility:
Searching for a "Free Serverside Executor" in Roblox often leads to scams, malware, or highly restrictive tools. Unlike standard executors that run on your computer (Client-side), a requires a "backdoor" script to be hidden inside a game's code by the developer.