Data sanitization

Data sanitization

Code injection is the exploitation of a computer bug that is caused by processing invalid data. Injection is used by an attacker to introduce (or "inject") code into a vulnerable computer program and change the course of execution. The result of successful code injection is often disastrous (for instance: code injection is used by some computer worms to propagate).

Reference:

https://en.wikipedia.org/wiki/Code_injection#Preventing_code_injection