Referrer Information Leakage

Low Severity Technical Guide

Vulnerability Description

Navigating to third-party links from secure areas can leak sensitive tokens, IDs, or search queries contained in the URL via the HTTP Referer header.

Remediation Guide

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

Configure a strict Referrer-Policy header (e.g. Referrer-Policy: strict-origin-when-cross-origin) to protect private URL structures.

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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