How to Find Open Redirect Vulnerabilities (And Make $100–$500+ From Them)

🔥 Introduction

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Most people use Google to explore websites.

But cybersecurity professionals use tools like Shodan to discover exposed systems, misconfigurations, and hidden attack surfaces.

Here's the truth:

👉 If a system is exposed, it's a potential target. 👉 And one of the most overlooked vulnerabilities hiding in plain sight is — Open Redirect.

It may look simple… but when combined with phishing, OAuth bypass, or token stealing, it becomes highly impactful.

💰 And yes — bug bounty platforms pay $100 to $500+ for valid reports.

⚠️ What is an Open Redirect Vulnerability?

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An Open Redirect occurs when a website allows users to redirect to any external URL without proper validation.

Example:

https://example.com/redirect?url=https://evil.com

If the website redirects users to evil.com without validation — it's vulnerable.

💡 Why Open Redirects Matter

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Many beginners ignore this vulnerability. That's a mistake.

Because Open Redirects can be used for:

  • 🎣 Phishing attacks (trusted domain → malicious site)
  • 🔐 OAuth token theft
  • 📩 Email bypass in password reset flows
  • 🕵️ Bypassing security filters
  • 📈 Chaining with other vulnerabilities

👉 Companies pay not just for the bug — but for the impact you demonstrate.

🔍 Step-by-Step: How to Find Open Redirect Vulnerabilities

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1️⃣ Find Targets (Google + Shodan Method)

Use Google Dorks:

inurl=redirect
inurl=redirect?url=
inurl=next=
inurl=return=
inurl=continue=

Use Shodan to find exposed apps:

  • Look for login panels
  • Admin dashboards
  • API endpoints

👉 Combine both to find less secure or misconfigured systems

2️⃣ Identify Redirect Parameters

Common parameters:

redirect=
url=
next=
return=
continue=
dest=
target=

Example:

https://target.com/login?next=/dashboard

3️⃣ Test for Open Redirect

Replace parameter value with your own domain:

https://target.com/login?next=https://evil.com

✅ If it redirects → Vulnerable

4️⃣ Bypass Filters (Advanced Practical Tricks)

Some sites block direct URLs. Try bypassing:

🔹 Using // (protocol-relative)

https://target.com?redirect=//evil.com

🔹 Encoding

https://target.com?redirect=https%3A%2F%2Fevil.com

🔹 Adding @

https://target.com?redirect=https://target.com@evil.com

🔹 Using subdomains

https://evil.com.target.com

👉 These tricks help bypass weak validation filters.

5️⃣ Increase Impact (This is where MONEY comes)

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A simple redirect = low severity A real attack scenario = higher payout

🔥 Example Attack Chain:

  1. Victim clicks trusted link:
https://trusted.com/redirect?url=https://evil.com
  1. Redirects to fake login page
  2. User enters credentials
  3. Attacker steals data

💰 This turns a low bug into a high-value report

💸 How to Make $100–$500+ from Open Redirect

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To earn money:

✅ Don't just report:

"Open redirect exists"

✅ Instead show:

  • Real exploitation scenario
  • Phishing demo
  • OAuth abuse (if possible)
  • Impact explanation

Example Report Line:

"This open redirect can be used to craft phishing links on a trusted domain, increasing user trust and leading to credential theft."

👉 This is what bounty hunters do differently.

🧠 Pro Tips (From Real Bug Hunters)

  • Always test login & signup flows
  • Check email verification links
  • Test password reset redirects
  • Combine with XSS or OAuth
  • Look in mobile APIs & hidden endpoints

🚀 Final Thoughts

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Google helps you find websites But tools like Shodan help you find opportunities

And vulnerabilities like Open Redirect are:

✔ Easy to find ✔ Beginner-friendly ✔ Highly practical ✔ Monetizable with the right approach

👉 The difference between beginners and professionals is simple:

Beginners find bugs Professionals show impact

📢 Call to Action

If you want more real-world cybersecurity techniques, bug bounty tips, and earning strategies:

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💡 Start practicing today — because in cybersecurity, skills = income