This document outlines the security measures implemented to address dependency vulnerabilities and maintain a secure codebase.

All dependencies have been updated to their latest secure versions:

helmet (^8.1.0)

• Comprehensive HTTP security headers
• Protection against common web vulnerabilities
• Configurable CSP, HSTS, XSS protection

hpp (^0.2.3)

• HTTP Parameter Pollution protection
• Prevents duplicate parameter attacks

sanitize-html (^2.14.0)

• Advanced HTML sanitization
• Whitelisting approach for allowed tags
• XSS attack prevention

snyk (^1.1294.0) - DevDependency

• Automated vulnerability scanning
• Real-time security monitoring
• Fix recommendations

Provides comprehensive HTTP security headers:

- Content-Security-Policy
- DNS Prefetch Control
- Expect-CT
- Frameguard (Clickjacking prevention)
- HSTS (HTTP Strict Transport Security)
- Hide X-Powered-By
- IE No Open
- MIME Type Sniffing Prevention
- Referrer Policy
- XSS Filter

Configuration:

• 1 year HSTS with subdomain inclusion
• Strict CSP with self-origin only
• Frame denial for clickjacking protection
• Comprehensive XSS protection

Multiple layers of input protection:

XSS Prevention:

• Deep sanitization of request body, query, and params
• HTML tag stripping
• JavaScript: protocol blocking
• Event handler attribute removal

MongoDB Injection Prevention:

• Removal of $ operators from user input
• Query object sanitization
• Recursive cleaning of nested objects

Parameter Pollution Prevention:

• Duplicate parameter detection
• Whitelist-based array parameters
• Single value enforcement for non-whitelisted params

Custom security headers for enhanced protection:

- X-Content-Type-Options: nosniff
- X-Frame-Options: DENY
- X-XSS-Protection: 1; mode=block
- Permissions-Policy (restrictive)
- Cross-Origin-Resource-Policy
- Cross-Origin-Opener-Policy
- Cross-Origin-Embedder-Policy

New npm scripts for security management:

# Run security audit
npm run audit

# Fix automatically fixable vulnerabilities
npm run audit:fix

# Check for moderate+ severity issues
npm run security:check

# Check for outdated packages
npm run update:check

1. npm audit - Built-in npm vulnerability scanner
2. Snyk - Continuous monitoring and alerting

1. Run npm audit before each deployment
2. Review all high/critical vulnerabilities
3. Update or replace vulnerable packages
4. Test thoroughly after updates
5. Document changes in CHANGELOG

found 0 vulnerabilities

All previously identified vulnerabilities have been resolved.

• Total dependencies: 330
• Outdated packages: 0 critical security updates needed
• All packages on supported versions

All user input is validated and sanitized:

• XSS prevention through sanitization
• SQL/NoSQL injection prevention
• Type validation with express-validator
• Length and format restrictions

• JWT with secure secret rotation
• Bcrypt for password hashing (10 rounds)
• Session management with Redis
• Automatic token refresh
• Brute force protection

• Global rate limiting (100 requests/15 minutes)
• Endpoint-specific limits
• Distributed rate limiting with Redis
• Bot detection and blocking
• IP-based tracking

• Environment variables for sensitive data
• Encrypted database connections
• Secure cookie settings
• HTTPS enforcement in production
• Data sanitization before storage

• No sensitive data in error messages
• Structured error logging
• Error tracking and monitoring
• Graceful degradation
• User-friendly error responses

1. Failed authentication attempts

   • Threshold: 5 failures in 15 minutes
   • Action: IP blocking + alert

2. Unusual traffic patterns

   • Threshold: 3x normal rate
   • Action: Investigation + potential blocking

3. Vulnerability detection

   • Automated scanning daily
   • Immediate notification for critical issues

• Console logging (development)
• File logging (production)
• Email alerts for critical issues
• Dashboard monitoring

• Weekly: Check for security updates
• Monthly: Update all minor versions
• Quarterly: Major version upgrades (with testing)

For critical vulnerabilities:

1. Immediate assessment
2. Emergency patch deployment
3. Post-deployment monitoring
4. Incident documentation

# Install dependencies
npm install

# Run security audit
npm run audit

# Run tests
npm test

# Check for outdated packages
npm run update:check

Recommended tools:

• OWASP ZAP
• Burp Suite
• SQLMap (for injection testing)
• XSSer (for XSS testing)

• All dependencies updated to secure versions
• npm audit shows 0 vulnerabilities
• Helmet security headers configured
• Input sanitization middleware active
• MongoDB injection protection enabled
• XSS protection implemented
• CORS configured with whitelist
• Rate limiting enabled
• Error messages don't expose sensitive data
• Environment variables secured
• HTTPS enforced in production
• Security monitoring active
• Automated scanning configured

1. Dependency Management

   • Automated dependency updates (Dependabot/Renovate)
   • Automated security PR reviews
   • Continuous integration security checks

2. Advanced Monitoring

   • Real-time threat detection
   • AI-powered anomaly detection
   • Security dashboard

3. Compliance

   • GDPR compliance audit
   • SOC 2 preparation
   • Regular security assessments

1. Assess severity (Critical/High/Medium/Low)
2. Isolate affected systems if necessary
3. Patch immediately for critical issues
4. Test patches thoroughly
5. Deploy to production
6. Monitor for issues
7. Document incident and resolution

For security issues, contact: security@grindmap.com

• OWASP Top 10
• npm Security Best Practices
• Node.js Security Checklist
• Express.js Security Best Practices

Last Updated: January 22, 2026
Security Audit: Passed
Vulnerabilities: 0
Status: ✅ Secure