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api-ssrf

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Server-Side Request Forgery testing on API endpoints that accept URLs, webhooks, callbacks, or file references

internal/tools/skills/data/api-security/api-ssrf/SKILL.md

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# API SSRF (OWASP API7)

## Purpose
Test API endpoints that fetch, validate, or process external URLs for server-side request forgery.

## Preconditions
- Identified an API endpoint that accepts a URL, hostname, webhook address, or file reference
- An OOB callback domain (from Xalgorix's oob_callback tool or interactsh)

## Attack Surface Signals
- Webhook registration endpoints (accept a callback URL)
- URL preview/screenshot endpoints
- File import from URL endpoints
- Link validation or unfurling
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