SQL injection can work through cookies?

Question

SQL

Hello, is it possible to hack a site through sql injection by changing the cookie? For example, change the existing cookies, and put a sql query there. Will it work? And you need to protect yourself from this through prepared queries?

Answer 1

It is necessary to protect yourself from SQL injections at the level of working with the database. If your accepted parameters are validated there, you are not afraid of SQL injections.