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Does same-origin policy protect against XSS?
Same-origin means that you cannot directly inject scripts or modify the DOM on other domains: that’s why you need to find an XSS vulnerability to begin with. SOP typically cannot prevent either XSS or CSRF.
What is the same-origin policy issue in selenium?
Same Origin policy prohibits JavaScript code from accessing elements from a domain that is different from where it was launched. Example, the HTML code in www.google.com uses a JavaScript program “testScript. js”. The same origin policy will only allow testScript.
Why is the same origin policy so important?
Cross Site Scripting is a vulnerability that allows an attacker to inject JavaScript code into a website, so that it originates from the attacked website from the browser point of view. This can happen if user input is not sufficiently sanitised. For example a search function may display the string “Your search results for [userinput]”.
Is there a way to prevent cross origin writes?
To prevent cross-origin writes, check an unguessable token in the request — known as a Cross-Site Request Forgery (CSRF) token. You must prevent cross-origin reads of pages that require this token. To prevent cross-origin reads of a resource, ensure that it is not embeddable.
What does it mean when a document does not have the same origin?
Cross-origin script API access JavaScript APIs like iframe.contentWindow, window.parent, window.open, and window.opener allow documents to directly reference each other. When two documents do not have the same origin, these references provide very limited access to Window and Location objects, as described in the next two sections.
How is data stored in one origin different from another?
Cross-origin data storage access. Access to data stored in the browser such as localStorage and IndexedDB are separated by origin. Each origin gets its own separate storage, and JavaScript in one origin cannot read from or write to the storage belonging to another origin. Cookies use a separate definition of origins.