Hidden form fields in web applications can store user roles, session tokens, and security parameters that attackers may exploit.

HTML scraping (Option D):

Involves analyzing HTML source code to find hidden fields like:

<input type='hidden' name='admin_access' value='true'>

Attackers use tools like Burp Suite, ZAP, or browser developer tools (Ctrl+U or Inspect Element) to locate hidden fields.

Incorrect options:

Option A (XSS): Exploits JavaScript injection, not for finding hidden fields.

Option B (On-path attack): Involves MITM interception, not directly analyzing form fields.

Option C (SQL injection): Targets databases, not HTML forms