Injection refers to a security vulnerability in an application software where an attacker injects malicious code into a request that is then processed by the application. This code is often in the form of SQL code, shell commands, or other scripts used to gain unauthorized access, manipulate data, or take control of the affected system.
The most common form of injection is SQL injection (SQLI), where attackers inject SQL commands into web forms, URL parameters, or other input fields processed by a web application. Successful SQL injection allows attackers to manipulate database queries and access confidential information.
Other types of injections include Cross-Site Scripting (XSS), where malicious JavaScript code is injected into web pages, and Command Injection, where attackers inject shell commands into an application that are then executed on the server. Injections pose a serious threat to the security of applications and require appropriate security measures such as input validation and the use of parameterized queries to prevent attacks.
