WebSecScan: AI-Powered Website Security Auditor

This n8n workflow provides comprehensive website security analysis by leveraging OpenAI’s models to detect vulnerabilities, configuration issues, and security misconfigurations. The workflow generates a professional HTML security report delivered directly via Gmail.

Key Features

• Dual-Layer Security Analysis: Performs parallel security audits using specialized OpenAI agents:
  • Header Configuration Audit: Analyzes HTTP headers, CORS policies, CSP implementation, and cookie security
  • Vulnerability Assessment: Identifies XSS vectors, information disclosure, and client-side weaknesses
• Detailed Security Grading: Automatically calculates a security grade (A+ to F) based on findings severity and quantity
• Professional Report Generation: Creates a comprehensive HTML report with:
  • Security grade visualization
  • Color-coded vulnerability categories
  • Detailed recommendations with example configuration fixes
  • Header presence/absence indicators
  • Implementation guidance for remediation
• Non-Invasive Testing: Performs analysis without active scanning or exploitation attempts

Technical Implementation

• Multi-Agent Architecture: Utilizes two specialized OpenAI agents with custom prompts tailored for security analysis
• Advanced Header Analysis: Detects presence and proper implementation of critical security headers:
  • Content-Security-Policy
  • Strict-Transport-Security
  • X-Content-Type-Options
  • X-Frame-Options
  • Referrer-Policy
  • Permissions-Policy
• Intelligent Issue Detection: Uses JavaScript processing to analyze OpenAI outputs and count critical/warning issues
• Responsive HTML Report: Dynamically generates a mobile-friendly report with detailed findings and recommendations

Setup Requirements

1. OpenAI API Configuration

1. Create an OpenAI API key at platform.openai.com
2. In n8n, go to Settings → Credentials → New → OpenAI API
3. Enter your API key and save

2. Gmail Integration

1. Navigate to Settings → Credentials → New → Gmail OAuth2 API
2. Complete the OAuth authentication flow
3. Configure recipient email in the “Send Security Report” node

3. Workflow Customization (Optional)

• Modify the form title/description in the Landing Page node
• Upgrade from gpt-4o-mini to gpt-4o for more comprehensive analysis
• Add additional recipients to the email report

Usage Instructions

1. Activate the workflow and access the form via the generated URL
2. Enter any website URL to analyze (including the http:// or https:// prefix)
3. Receive a detailed security report via email within minutes
4. Share findings with your development team to implement fixes