developer-roadmap/src/data/best-practices/api-security/content/validate-user-input.md

Validate User Input

Validate user input to avoid common vulnerabilities

User input is a common source of vulnerabilities in web applications. This is because user input is often not properly validated, sanitized, or escaped before being used in a web application. This can allow an attacker to manipulate the input and execute malicious code or cause the application to behave unexpectedly.