Prevent Prompt Injection Attacks with a GPT-4O Security Defense System

Description

AI Security Pipeline - Prompt Injection Defense System using GPT-4O

Protect your AI workflows from prompt injection attacks, XSS attempts, and malicious content with this multi-layer security sanitization system.

> Important: The n8n workflow template uploader did not allow me to upload the complete system prompt for the Input Validation & Pattern Detection. Copy the complete System Prompt from here

What it does

This workflow acts as a security shield for AI-powered automations, preventing indirect prompt injection and other threats. It processes content through a multi-layered defense pipeline that detects malicious patterns, sanitizes markdown, validates URLs, and provides comprehensive security assessments.

How it works

Receives content via webhook endpoint
Detects threats including prompt injections, XSS attempts, and data URI attacks
Sanitizes markdown by removing HTML, dangerous protocols, and suspicious links
Validates URLs blocking suspicious IP addresses, domains, and URL shorteners
Returns security report with risk assessment and sanitized content

Setup

Import and activate the workflow
Use the generated webhook URL: /webhook/security-sanitize
Send POST requests with
JSON: {"content": "your_text", "source": "identifier"}

Use cases

Secure AI chatbots and LLM integrations
Process user-generated content before AI processing
Protect RAG systems from data poisoning
Sanitize external webhook payloads
Ensure compliance with security standards

Perfect for any organization using AI that needs to prevent prompt manipulation, data exfiltration, and injection attacks while maintaining audit trails for compliance.