Cross Site Scripting (XSS) - Reflected Cross Site Scripting

 





If login is failed, the application generates an HTML response with user-entered data. But the page generation is performed without data encoding, thereby exposing the application to an XSS vulnerability.


If the server response is based on user-entered data, the parameters have to be encoded to make HTML markup. For this, the Tag-helpers provided by the RazorPages are used to create a prepared in advance input form with encoded user data. So, HTML injections will be unavailable, thereby eliminating the Reflected XSS vulnerability.



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