Automate Open Redirection and XSS Testing with URL Auto Opener

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Bug bounty hunting and penetration testing often require testing multiple URLs for Open Redirection and Cross-Site Scripting (XSS) vulnerabilities. Manually opening each URL and testing payloads can be tedious and time-consuming.

That’s where URL-Auto-Opener comes in — a simple yet powerful Python script that automates the process of opening multiple URLs, with a customizable time delay between each one. It streamlines your testing workflow, allowing you to focus on analysis rather than manual effort.

Open redirection and XSS vulnerabilities are common yet critical security issues. Automation helps:
✅ Save time by opening multiple URLs automatically
✅ Test various payloads efficiently
✅ Identify patterns and vulnerabilities quickly
✅ Avoid human error in manual testing

Manual testing is not scalable — automation is the key to increasing efficiency and accuracy.

URL-Auto-Opener is a Python script that reads a list of URLs from a text file, opens them in your default browser, and waits for a specified delay before proceeding to the next one.

Opens URLs automatically in the default browserCustomizable time delay between each requestEasy-to-read output showing successful attemptsSimple setup and usage

Clone the repository:git clone https://github.com/NightfallSecDev/URL-Auto-Opener.git

2. Navigate to the folder:

cd URL-Auto-Opener

3. Create a urls.txt file with one URL per line:

https://example.com
https://google.com
https://github.com

4. Run the script:

python open_urls.py

5. Enter:

Path to your text fileTime delay between each URL (in seconds)

Open redirection vulnerabilities occur when an application redirects a user to an external website without proper validation. This can lead to:

Phishing attacks — Redirecting users to malicious websitesCredential stealing — Directing users to fake login pagesSession hijacking — Exploiting cookies during the redirection processhttps://target.com/?redirect=https://evil.com
https://target.com/login?next=https://attacker.com

Using URL-Auto-Opener:

Add the payloads to urls.txtRun the scriptObserve the browser behavior — if the redirect happens without validation, it’s a vulnerability!

XSS vulnerabilities allow attackers to inject malicious scripts into web pages, which can execute in the user’s browser. This can lead to:

Session hijackingData theftPhishing attackshttps://target.com/search?q=<script>alert('XSS')</script>
https://target.com/login?error=<img src=x onerror=alert('XSS')>

Using URL-Auto-Opener:

Add the XSS payloads to urls.txtRun the scriptIf the payload executes or appears in the page source — it’s an XSS vulnerability!

Enter the path to your text file: urls.txt
Enter the time delay between each URL (in seconds): 60
Opening: https://example.com/?redirect=https://evil.com
Checked: https://example.com/?redirect=https://evil.com
Opening: https://target.com/search?q=<script>alert('XSS')</script>
Checked: https://target.com/search?q=<script>alert('XSS')</script>
All URLs have been opened and checked.

🔥 Use common open redirection and XSS payloads from public bug bounty reports.
🔥 Modify user-agent headers to mimic different browser behaviors.
🔥 Add URL encoding to bypass certain filters.
🔥 Keep track of successful payloads for future reference.

✅ Automates repetitive URL testing
✅ Saves hours of manual effort
✅ Fast, lightweight, and simple
✅ Works on Linux, Windows, and Mac

Whether you’re a penetration tester or a bug bounty hunter, automating open redirect and XSS testing with URL-Auto-Opener will give you a serious edge. Start using it today and take your security testing to the next level!

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