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Don't quite get the meaning of "iterate all values of submit fields"

Hello | Last updated: Jan 22, 2016 03:40PM UTC

What does "Spider >> Options >> Form Submission >> Iterate all values of submit fields" do? I've read https://portswigger.net/burp/help/spider_options.html : "Many forms contain multiple SUBMIT elements, which result in different actions within the application, and the discovery of different content. You can configure the Spider to iterate through the values of all submit elements within forms, submitting each form multiple times up to a configurable maximum" But still don't quite get it. Doesn't every form element has a name (e.g. "address") which would match our specific regex rule? What's there to iterate?

PortSwigger Agent | Last updated: Jan 22, 2016 04:47PM UTC

This applies to SUBMIT elements. Burp will submit the form multiple times, so simulate clicking each button in turn.

Burp User | Last updated: Jun 20, 2016 06:02PM UTC