We take the security of the Resume Builder project seriously. This document outlines our security practices and how to report vulnerabilities responsibly.

Security updates will be released for the current major version. Users are encouraged to upgrade to the latest version.

If you discover a security vulnerability, please report it responsibly:

1. Email: Send details to [security contact - update with your email]

   • Subject: [SECURITY] Resume Builder Vulnerability Report
   • Include: Description, affected components, reproduction steps, impact assessment

2. GitHub Security Advisory: Use GitHub's Security Advisory feature

   • Go to Security tab → Advisories → Report a vulnerability

3. Response Timeline:

   • We aim to acknowledge vulnerability reports within 48 hours
   • We'll investigate and provide updates every 5-7 days
   • Critical vulnerabilities will be patched immediately
   • You'll be credited (if desired) when the fix is released

Strengths:

• ✅ No server-side vulnerabilities (SQL injection, server exploits, etc.)
• ✅ No data transmission to external servers
• ✅ All processing happens locally in the browser
• ✅ Users have full control over their data

Limitations:

• ⚠️ Browser security vulnerabilities could affect users
• ⚠️ XSS attacks possible if user input isn't sanitized
• ⚠️ Local storage vulnerable if device is compromised

1. XSS Prevention

   • All user input is sanitized before DOM insertion
   • sanitizer.js module handles HTML escaping
   • No innerHTML used with user-controlled data

2. Input Validation

   • Email, phone, URL formats validated
   • Maximum field lengths enforced
   • Dangerous URL schemes (javascript:, data:) blocked

3. Data Privacy

   • All data stored locally in browser's localStorage
   • No external API calls
   • No analytics or tracking
   • No personal data ever leaves the user's device

4. Code Quality

   • ESLint configuration enforces security best practices
   • Regular code reviews recommended for PRs
   • Dependencies kept minimal (no third-party libraries)

1. Keep Your Browser Updated

   • Ensure your browser has the latest security patches
   • Use a modern browser (Chrome, Firefox, Safari, Edge)

2. Browser Security Settings

   • Enable browser security features (CSP, SOP, etc.)
   • Don't disable JavaScript or browser protections
   • Be cautious with browser extensions

3. Data Backup

   • Regularly export your resume as PDF
   • Don't rely solely on local storage
   • Consider keeping backed-up copies

4. Device Security

   • Use a secure, password-protected device
   • Keep your OS and applications updated
   • Be cautious of malware and spyware

5. Account Security

   • Use strong, unique passwords for your GitHub account
   • Enable two-factor authentication (2FA)
   • Never share authentication credentials

# Content Security Policy
Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://fonts.googleapis.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com;

# Prevent MIME type sniffing
X-Content-Type-Options: nosniff

# Enable XSS protection
X-XSS-Protection: 1; mode=block

# Prevent clickjacking
X-Frame-Options: SAMEORIGIN

# Enable HTTPS
Strict-Transport-Security: max-age=31536000; includeSubDomains

# Referrer policy
Referrer-Policy: strict-origin-when-cross-origin

This project has zero production dependencies (framework-free).

Development dependencies:

• eslint - Code quality (no execution in production)
• jest - Testing (no execution in production)
• http-server - Development only

Why minimal dependencies?

• Reduces attack surface
• No dependency vulnerabilities to track
• Faster, more reliable application
• Better for users' privacy

When adding new dependencies:

1. Use npm audit to check for vulnerabilities
2. Keep dependencies up-to-date
3. Review dependency code when possible
4. Prefer well-maintained packages with active security updates

Before each release:

• Run npm audit - check for dependency vulnerabilities
• Run npm run lint - code quality checks
• Run npm test - ensure tests pass
• Review user input handling
• Check for unescaped content in DOM
• Verify no console.log of sensitive data
• Test in modern browsers
• Check browser DevTools for security warnings
• Review recent commits for security issues

When a vulnerability is reported:

1. Immediate Actions

   • Acknowledge receipt of the report
   • Begin investigation and assessment
   • Develop a fix or mitigation strategy

2. Development

   • Create a fix in a private branch
   • Write tests for the vulnerability
   • Document the issue and fix

3. Release

   • Publish a minor version bump with the fix
   • Release security advisory
   • Credit the researcher (if they consent)

4. Communication

   • Update SECURITY.md if needed
   • Add entry to CHANGELOG.md
   • Notify users of the update

• GitHub - Code hosting and CI/CD

  • Review: GitHub Security
  • 2FA recommended for contributors

• npm - Package management

  • Review: npm Security
  • npm audit regularly run

Help improve security by:

1. 🔍 Code Review - Review PRs for security issues
2. 📚 Documentation - Improve security guides
3. 🧪 Testing - Write security-focused tests
4. 🐛 Reporting - Responsibly disclose vulnerabilities
5. 💡 Suggestions - Propose security improvements

• OWASP Top 10 - Web application security risks
• Mozilla Web Security - Security best practices
• CWE/SANS Top 25 - Most dangerous software weaknesses
• Web.dev Security - Web security fundamentals

• Questions: Open an issue with [SECURITY] tag
• Vulnerabilities: Email security contact (see above)
• Discussion: GitHub Discussions for security topics

Thank you for helping keep Resume Builder secure! 🔒

Last Updated: January 15, 2026