Question

what a set of codes that uses an arbitrary source file as its input
data.​

Answer 1

In computer security, arbitrary code execution (ACE) is used to describe an attacker's ability to execute arbitrary commands or code on a target machine or in a target process.[citation needed] An arbitrary code execution vulnerability is a security flaw in software or hardware allowing arbitrary code execution. A program that is designed to exploit such a vulnerability is called an arbitrary code execution exploit. The ability to trigger arbitrary code execution over a network (especially via a wide-area network such as the Internet) is often referred to as remote code execution (RCE).