open-redirect-testing

Detect open redirect vulnerabilities by manipulating redirect parameters in target URLs.

83|8|Updated May 6, 2026
One-click install
npx skills add https://github.com/Q16G/aster --skill open-redirect-testing
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: open-redirect-testing
Source: https://github.com/Q16G/aster/tree/main/skills/pentest/open-redirect-testing
Command: npx skills add https://github.com/Q16G/aster --skill open-redirect-testing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill detects open redirect vulnerabilities by identifying URLs that accept redirect parameters (url, redirect, next, return, goto) and attempting safe, controlled checks to determine whether an attacker can steer victims to an external site. It helps security testers validate the presence of redirects in login flows, OAuth callbacks, and link forwarding without triggering harmful redirects.

Core Features & Use Cases

  • Identify redirect parameters in web targets (url, redirect, next, return, goto, etc.) and assess whether external domains can be reached.
  • Provide a structured assessment of vulnerability status (confirmed, suspected, not vulnerable) with clear remediation guidance.
  • Apply in contexts like login redirects, OAuth flows, and URL shorteners to strengthen redirect hygiene.

Quick Start

Run a controlled redirect test against a target URL that contains a known redirect parameter to verify whether external destinations can be reached and report the findings with evidence.

Frequently Asked Questions about open-redirect-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test for open redirect vulnerabilities in login and OAuth callback URLs?

To test for open redirect vulnerabilities, you manipulate common redirect parameters like url, redirect, next, return, and goto in target URLs to determine if victims can be steered to an external domain. This Skill automates parsing and validating those parameters to confirm if unsafe redirects exist.

What is an open redirect vulnerability and how does parameter manipulation expose it?

An open redirect vulnerability occurs when a web application performs redirects using unvalidated user input. Attackers exploit this by manipulating redirect parameters like next or goto to forward victims to malicious external sites, which this Skill detects through controlled checks across login and OAuth flows.

How do I validate redirect parameters to block unsafe external domain forwarding?

You validate redirect parameters by parsing target URLs and checking whether the destination domain is permitted. This Skill applies controlled tests to assess if external domains can be reached through link forwarding, providing a structured report of confirmed or suspected vulnerabilities.

Does this open redirect testing approach work across different environments and protocols?

Yes, this open redirect testing approach applies to web applications across different environments and protocols. It specifically targets contexts that perform redirects after login, OAuth callbacks, or link forwarding, ensuring broad vulnerability detection coverage.

What are the limitations of automated open redirect detection for security testing?

A key limitation of automated open redirect detection is the need for a safety boundary to avoid triggering harmful redirects. The Skill reports confirmed, suspected, or not vulnerable statuses but requires target URLs with known redirect parameters to yield accurate security testing results.