PortSwigger Lab Write-Up: User ID Controlled by Request Parameter with Password Disclosure

📰 Medium · Cybersecurity

Learn to exploit access control vulnerabilities where user IDs are controlled by request parameters, leading to password disclosure

intermediate Published 22 Jun 2026
Action Steps
  1. Identify request parameters that control user IDs using tools like Burp Suite
  2. Analyze the request parameter to determine if it can be manipulated to access other users' accounts
  3. Configure a proxy to intercept and modify requests to test for password disclosure
  4. Test for password disclosure by manipulating the user ID parameter and observing the response
  5. Apply knowledge of access control vulnerabilities to secure user ID parameters and prevent password disclosure
Who Needs to Know This

Security teams and penetration testers can benefit from this knowledge to identify and exploit vulnerabilities in access control mechanisms, ultimately strengthening their organization's security posture

Key Insight

💡 User IDs controlled by request parameters can lead to password disclosure if not properly secured

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🚨 Exploit access control vulnerabilities with user ID controlled by request parameters! 💻

Key Takeaways

Learn to exploit access control vulnerabilities where user IDs are controlled by request parameters, leading to password disclosure

Full Article

Category: Access Control Vulnerabilities Difficulty: Apprentice Continue reading on Medium »
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