After decoding the URL encoding ( %3A → : , %2F → / ), the actual callback becomes:
The attack typically targets applications that accept user-provided URLs for features like image uploads, link previews, or webhooks. Abusing the AWS metadata service using SSRF vulnerabilities After decoding the URL encoding ( %3A →
curl http://169.254.169.254/latest/meta-data/iam/security-credentials/MyAppRole %2F → / )