🛡️ Cybersecurity Review Guide for React & Vite Applications

Conducting a cybersecurity review is essential for identifying vulnerabilities, enforcing secure development practices, and protecting user data. Here’s a structured approach tailored specifically for modern frontend stacks like React and Vite.

1.🎯 Define the Scope
Start with clear objectives:
Assess your application against threats like:

• XSS (Cross-Site Scripting)
• CSRF (Cross-Site Request Forgery)
• Data leaks
• Insecure storage
• Misconfigured permissions

Include in your scope:
✅ Frontend code
✅ APIs
✅ Build outputs
✅ Deployment configurations

2.🔍 Static & Dependency Analysis

• Run yarn audit or npm audit for known vulnerabilities.
• Regularly update outdated or vulnerable dependencies.
• Search for hard-coded secrets or API keys.
• Exclude source maps from production builds to avoid exposing internal code.

3.🛡️ Security Headers & Configs
Ensure critical HTTP security headers are properly set:

• - Content-Security-Policy
• - X-Frame-Options / frame-ancestors
• - Strict-Transport-Security
• - X-Content-Type-Options
• Use tools like OWASP ZAP to automate header checks and identify gaps.

4.🔐 Access Control (RBAC)

• Enforce Role-Based Access Control both in the frontend and backend.
• Ensure users can only access views/actions authorized to their roles.
• Never rely solely on frontend checks—always validate on the server too.

5.🧼 Input & Output Sanitization

• Validate and sanitize all user input (client + server).
• Avoid dangerouslySetInnerHTML unless fully sanitized.
• Escape dynamic content in rendering or DOM manipulation.

6.🌐 CORS Policy Review

• Allow only specific trusted origins.
• Avoid * unless absolutely needed (e.g., public APIs).
• Block credentials unless they’re essential.

7.🕵️ Sensitive Data Exposure
Ensure no sensitive data (PII/PHI) is leaked via:

• API responses
• Error messages
• Console logs
• Check both dev and prod environments for test/debug endpoints.

8.🔒 Data Storage & Encryption

• Avoid storing sensitive tokens in localStorage or sessionStorage.
• Prefer HttpOnly cookies for auth tokens to reduce XSS risk.
• Ensure encryption at rest for sensitive data like PHI or financial info.

9.📦 Production Build Inspection

• Verify your production build:
• Is minified and optimized.
• Removes all console.* and debugger statements (via Terser, etc.).
• Does not expose sourcemaps or internal paths.

10.🛠️ Automated Scanning & Testing
Use these tools to automate and reinforce your security posture:

• OWASP ZAP – Dynamic security testing
• Snyk or Dependabot – Dependency monitoring
• Lighthouse – Performance, accessibility, and basic security audits

✅ Summary
Cybersecurity isn’t a one-time task—it's an ongoing process. Even with modern stacks like React and Vite, you must stay vigilant. Regular audits, secure coding practices, and automation go a long way toward securing your app and users.