πŸ›‘οΈ Cybersecurity Review Guide for React & Vite Applications



This content originally appeared on DEV Community and was authored by Satwik Nakhate

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  • Regularly update outdated or vulnerable dependencies.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 checksβ€”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 taskβ€”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.


This content originally appeared on DEV Community and was authored by Satwik Nakhate