Cross site scripting xss attacks are a type of injection in which malicious scripts are injected into otherwise benign and trusted websites. As with all other cross site scripting xss vulnerabilities this type of attack also relies on insecure handling of user input on an html page.
It uses the document object model dom which is a standard way to represent html objects in a hierarchical manner.
Dom xss attack. A dom based xss vulnerability arises when the dom is used to generate dynamic content containing user input that can be processed without checking. Dom based xss definition. An attacker can construct a link to send a victim to a vulnerable page with a payload in the query string and fragment portions of the url.
Dom based cross site scripting dom xss is a particular type of a cross site scripting vulnerability. There are a couple of things to keep in mind if you want to prevent dom xss attacks. Dom xss stands for document object model based cross site scripting.
There are a number of ways to ensure this. Here the locations that malicious user input bring into the dom are designated as source. Xss attacks occur when an attacker uses a web application to send malicious code generally in the form of a browser side script to a different end user.
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. The payload cannot be found in the response. Dom xss stands for document object model based cross site scripting.