From Zero to Hero: Hunting High-Paying Open Redirect Bugs in Web Apps
1 min read
Summary
The open redirect vulnerability is a common security flaw that can lead to serious consequences like phishing, malware distribution and session hijacking.
This flaw occurs when a web application accepts user input for URLs (locations on the internet) without proper validation or control.
If the server accepts the user-supplied URL and performs the redirect without sufficient checks, it creates this vulnerability.
Attackers can manipulate URL parameters to redirect users to malicious sites, accessing user data or serving malware.
This article provides a step-by-step guide to finding and exploiting this vulnerability, and manual testing techniques for discovery.
It also highlights the significance of proper validation and controlled checks to prevent open redirects.