Is it possible to access the local network from third party JavaScript?

Question

JavaScript

There are many ideas that require breaking into someone else's locale by downloading a page with JavaScript by the victim. Is it possible to access the local network using third-party JS, for example, to reconfigure or flash a passwordless router on a client? Of course with the help of AJAX technologies. Too lazy to test the idea, why not ask on the toaster) Yes, and rather share than ask.

Answer 1

In general, AJAX cannot refer to another domain.
But there are options - see cross-domain ajax

Answer 2

Nothing from the browser, the browser is a sandbox
And it's good that this is so, the old ie really had holes in the form of activex
From node.js and platforms based on it, you can create with the system that launched whatever your heart desires