Server-Side Request Forgery (SSRF)

High Severity Technical Guide

Vulnerability Description

SSRF occurs when a web application fetches a remote resource without validating the user-supplied URL, allowing attackers to coerce the server into sending requests to internal resources, metadata endpoints, or loopback interfaces.

Remediation Guide

To resolve this vulnerability, follow these config changes or developer practices:

Enforce a strict whitelist of permitted target domains/IPs. Block requests to private IP ranges (RFC 1918) and local metadata services (e.g. 169.254.169.254).

Verify Your Fix

After applying the remediation, run an external attack-surface scan to verify that the vulnerability is no longer detected by WebScanify.

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