Answer :
The term cross-site scripting is best describes this attack. Some web programs contain a form of security flaw known as cross-site scripting (XSS).
Some web programs contain a form of security flaw known as cross-site scripting (XSS). XSS attacks give attackers the ability to insert client-side scripts into web pages that other users are seeing.
A cross-site scripting flaw could be exploited by attackers to get around access restrictions like the same-origin policy. Up to 2007, over 84% of all security vulnerabilities identified by Symantec used web-based cross-site scripting.
Depending on the sensitivity of the data handled by the vulnerable site and the type of security mitigations applied by the site's owner network, XSS consequences can range from a little annoyance to a serious security issue.
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