File inclusions are a part of every server-side script on the web application. They are needed to keep the web application’s code clean and maintainable. They also allow the web server to read files from the system, provide download functionality and more. But these files can also be a major bug for the web application if they are not maintained properly, and attackers can advantage of them to target a web application, web server or the entire organizational network. These bugs are found generally where parameterized queries are used.
Types of File Inclusions:
How to Prevent File Inclusions: