web-security

To prevent XSS and injection attacks, you must treat all user input as hostile and strictly validate data at all system boundaries. Enforcing secure coding principles mitigates cross-site scripting and SQL injection vulnerabilities before deployment.

Securing web authentication and authorization requires following established best practices for handling user credentials and enforcing strict access control. This ensures that only authenticated users gain access to protected resources.

Configuring Content Security Policy (CSP) and Cross-Origin Resource Sharing (CORS) involves leveraging browser security APIs to restrict resource loading and control cross-origin requests. This mitigates malicious data injection and unauthorized data access.

User input must be treated as hostile because unvalidated data is the primary vector for web vulnerabilities like XSS and injection attacks. Validating data at all boundaries ensures that malicious payloads cannot execute within your application.

You can apply these secure coding guidelines to both new web features and existing applications. Reviewing security principles helps developers validate user inputs and mitigate vulnerabilities across the entire software lifecycle.