GPT-4O Security Defense Against Prompt Injection Attacks

This n8n workflow implements a robust security pipeline to protect AI-powered automations from prompt injection attacks, XSS attempts, data URI exploits, and other threats. It receives content via a webhook endpoint, processes it through GPT-4O for threat detection, sanitizes markdown by stripping dangerous HTML and protocols, validates URLs against suspicious IPs/domains/shorteners, and outputs a comprehensive security report with risk levels and cleaned content.

Key benefits include safeguarding LLM integrations, chatbots, and RAG systems from data poisoning and indirect injections, ensuring compliance with security standards, and enabling safe processing of user-generated content. It's ideal for organizations leveraging AI, reducing vulnerability exposure without manual intervention.

Use cases: Secure AI chatbots and workflow inputs; preprocess external payloads in automations; protect knowledge bases in RAG setups; sanitize webhooks from untrusted sources. Setup is simple: import, activate, and POST JSON to the webhook URL with 'content' and 'source' fields. Note: Complete system prompt for validation node available via GitHub link.