Web Application Security Checklist for Developers

Security is every developer’s responsibility. This checklist covers essential steps to protect your web applications. OWASP Top 10: Familiarize yourself with the OWASP Top 10 vulnerabilities: Injection, Broken Authentication, Sensitive Data Exposure, XML External Entities, Broken Access Control, Security Misconfigurations, Cross-Site Scripting (XSS), Insecure Deserialization, Using Components with Known Vulnerabilities, and Insufficient Logging. Input Validation: Never trust user input. Validate on both client and server, use parameterized queries to prevent SQL injection, sanitize HTML to prevent XSS, and validate file uploads....

<span title='2026-05-22 00:00:00 +0000 UTC'>May 22, 2026</span>&nbsp;·&nbsp;1 min