Description: Server-side validation is a critical process in web application security that involves verifying and validating user input on the server rather than relying solely on client-side validation. This approach ensures that the data received is correct, complete, and secure before being processed or stored. Server-side validation is essential to prevent attacks such as SQL injection, cross-site scripting (XSS), and other types of vulnerabilities that can compromise the integrity and security of the application. By performing validation on the server, it ensures that any manipulation of data on the client side does not affect the application’s security. This process may include checking data types, input length, the presence of disallowed characters, and specific business logic. Additionally, server-side validation provides a second line of defense, complementing client-side validation, which can be bypassed by malicious users. In summary, server-side validation is a fundamental practice for maintaining the security and robustness of web applications in general.
