Where do you find Dom XSS in JavaScript?
DOM XSS begins at window.location.hash ‘#’ in document.url (simplified) DOM XSS also executes via Client-side Javascript (simplified) Reflected XSS is most frequently found in location.path or location.query (simplified) Stored XSS Reads/Writes to a Client or Server File, Renders inside SOP (simplified)
How is location.hash invisible to XSS scanners?
Window.location.hash is largely invisible to XSS Scanners. Following a Tainted Input Source of location.toString all the way to execution in the Sink of innerHTML is nearly BlackBox. If you like to Debug Javascript, take a look at the New Relic Analytics Code in the ‘nrWrapper’ and how the Bug is Executed.
Is it possible to leverage window.location to perform XSS?
It is possible to leverage the window.location to perform xss. It seemed like the roadblock you were running into was with the fact that after the window.location line executed the page would refresh and skip the execution of yourpayload.
How to use JavaScript to XSS a page?
Take the classic redirect page… If there is JavaScript on the page that then sets window.location to the value of the query string parameter url, then the page will go to http://somethingevil. The main way XSS is done is by allowing query string parameters to inject data into the page itself.
How does a DOM based XSS attack work?
DOM Based XSS (or as it is called in some texts, “type-0 XSS”) is an XSS attack wherein the attack payload is executed as a result of modifying the DOM “environment” in the victim’s browser used by the original client side script, so that the client side code runs in an “unexpected” manner.
How to use location.href in chrome XSS?
It uses from location.href, so I though about using an injection script like this: target-url.com/#”+alert (1)+””, escaping the string and placing an alert (1) to trigger an alert in the page. If I edit the script using Chrome Dev tools, the script is successfully executed: