OWASP Top 10: What Developers Must Know
1. Broken Access Control
Users can access data they should not. Fix: Check authorization on every request.
2. Cryptographic Failures
Sensitive data exposed due to weak encryption. Fix: Use strong encryption, HTTPS everywhere.
3. Injection (SQL, NoSQL, Command)
Malicious input executed as code. Fix: Parameterized queries, input validation.
4. Insecure Design
Security not considered during design. Fix: Threat modeling, security requirements.
5. Security Misconfiguration
Default settings, unnecessary features enabled. Fix: Harden configurations, disable defaults.
6. Vulnerable Components
Using outdated libraries with known vulnerabilities. Fix: Regular dependency updates, npm audit.
7. Authentication Failures
Weak login systems. Fix: Strong passwords, rate limiting, MFA.
8. Software & Data Integrity Failures
Untrusted updates or pipelines. Fix: Verify integrity of dependencies and deployments.
9. Security Logging Failures
No monitoring or alerting. Fix: Log security events, set up alerts.
10. Server-Side Request Forgery (SSRF)
Server fetches malicious URLs. Fix: Validate and whitelist outbound requests.
Prevention Summary
Every application I build includes defenses against all OWASP Top 10 vulnerabilities.
Build a secure application with comprehensive security measures.