offensive-open-redirect

Identify and validate open redirect endpoints in web applications.

1|Updated Apr 27, 2026
One-click install
npx skills add https://github.com/riparino/Claude-Cyber --skill offensive-open-redirect
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: offensive-open-redirect
Source: https://github.com/riparino/Claude-Cyber/tree/main/Claude-Red/Skills/offensive-open-redirect
Command: npx skills add https://github.com/riparino/Claude-Cyber --skill offensive-open-redirect

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Open redirect vulnerabilities allow attackers to trick users into visiting malicious sites by abusing redirect endpoints. This skill provides a structured checklist to identify risky redirect parameters, bypass protections, and compose effective test chains during web app assessments.

Core Features & Use Cases

  • Parameter discovery and validation: Locate and test common redirect parameters (redirect, url, next, etc.) across endpoints.
  • Bypass and chaining techniques: Apply encoding, protocol tricks, and referer-based strategies to bypass simple checks and chain redirects with OAuth/SSRF.
  • Use Case: In bug bounty or red-team operations, map an app's redirect flows, confirm exploitable endpoints, and outline mitigation steps.

Quick Start

Analyze an application’s redirect endpoints and run a targeted open-redirect test sequence to identify vulnerable URLs.

Frequently Asked Questions about offensive-open-redirect

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

FAQPage Schema
How do I identify and validate open redirect vulnerabilities in web applications?

Identify and validate open redirect vulnerabilities by locating common redirect parameters like redirect, url, and next across endpoints. Apply encoding tricks, protocol manipulation, and referer-based strategies to bypass simple protections and confirm exploitable redirection behavior safely.

What is an open redirect vulnerability and how can it be chained with OAuth flows?

An open redirect vulnerability allows attackers to redirect users to malicious sites via unvalidated URL parameters. You can chain open redirects with OAuth flows by manipulating authorization endpoints to redirect traffic through legitimate application domains.

How can I bypass domain allowlisting to test for open redirects?

Bypass domain allowlisting by applying URL encoding tricks, protocol manipulations, and referer-based redirect strategies. These techniques circumvent simple server-side validation checks to expose unsafe redirect patterns in web application endpoints.

Can I use this approach for bug bounty and red-team operations involving SSRF?

Yes, you can use this structured checklist for bug bounty and red-team operations to map application redirect flows, confirm exploitable endpoints, and chain open redirects with Server-Side Request Forgery (SSRF) for comprehensive security assessments.

What are the best remediation steps for preventing phishing through open redirects?

Prevent phishing through open redirects by implementing robust domain allowlisting, enforcing safe redirect patterns, and applying server-side validation. Maintain comprehensive logging and follow structured remediation guidance to secure redirect endpoints.

Why does my open redirect test fail against server-side validation checks?

Open redirect tests fail against server-side validation when simple payload variations are blocked by domain allowlisting. Overcome this by applying advanced encoding techniques, protocol tricks, and referer-based bypass strategies to circumvent strict server-side checks.