This repository demonstrates secure frontend development practices. It is designed as a reference implementation for building client-side applications with security-first principles.

• User Input Integrity: All user inputs are validated using Zod schemas before processing
• Client-Side State: Application state is managed securely with Redux Toolkit
• Local Storage: Data persisted to localStorage is properly validated on retrieval
• Dependencies: Automated scanning via Dependabot and npm audit in CI

This is a frontend-only application with explicit limitations:

• No Authentication: There is no user authentication system
• No Authorization: All features are accessible to anyone who loads the page
• No Backend: No API endpoints, databases, or server-side processing
• No Secrets Management: This application does not handle API keys, tokens, or credentials
• No Network Security: No HTTPS enforcement, CSP headers, or CORS policies (handled at infrastructure level)
• No Data Privacy: All data is stored in browser localStorage and should be considered ephemeral

See docs/threat-model.md for a complete threat analysis.

Key Threats Addressed:

• XSS via user input → Mitigated by React's default escaping and input validation
• Invalid data processing → Mitigated by Zod schema validation
• Vulnerable dependencies → Mitigated by automated scanning and updates
• Logic errors → Mitigated by comprehensive unit tests

Out of Scope:

• Server-side attacks (no server)
• Authentication bypass (no authentication)
• SQL injection (no database)
• API abuse (no APIs)

If you discover a security vulnerability in this repository:

1. DO NOT open a public GitHub issue
2. Email: [Insert contact email for your organization]
3. Include:
   • Description of the vulnerability
   • Steps to reproduce
   • Potential impact
   • Suggested fix (if available)

• Initial Response: Within 48 hours
• Status Update: Within 7 days
• Resolution Target: Within 30 days for critical issues

• We follow coordinated disclosure
• Fixes will be released before public disclosure
• Reporter will be credited (unless they prefer anonymity)

When using this reference implementation:

1. Review Dependencies: Always audit dependencies before production use
2. Update Regularly: Keep dependencies up to date with security patches
3. Customize Validation: Adapt Zod schemas to your specific use cases
4. Add Backend Security: If adding a backend, implement proper authentication and authorization
5. Configure CSP: Deploy with Content Security Policy headers
6. Use HTTPS: Always serve over HTTPS in production
7. Monitor Logs: Implement monitoring for the structured logs

This repository includes:

• Static Analysis: ESLint with security plugin
• Dependency Scanning: npm audit in CI
• Type Safety: Strict TypeScript configuration
• Input Validation Tests: Unit tests for all Zod schemas
• E2E Security Tests: Playwright tests for user workflows

To run security checks locally:

npm run lint
npm audit --audit-level=high
npm run typecheck
npm test

This repository demonstrates practices aligned with:

• OWASP Top 10 (client-side applicable items)
• CIS Software Supply Chain Security Guide
• NIST Secure Software Development Framework (SSDF)

Note: This is a reference implementation. Compliance requirements vary by organization and context.

• OWASP Cheat Sheet Series
• NIST SSDF
• CIS Software Supply Chain Security Guide

This security policy is part of the secure-frontend-console project and is licensed under the MIT License.