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The correct answer is D.

OBJ-3.4: This is a form of Cross-Site Scripting (XSS). Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications. XSS enables attackers to inject client-side scripts into web pages viewed by other users. Attackers may use a cross-site scripting vulnerability to bypass access controls such as the same-origin policy. Cross-site request forgery (CSRF or XSRF) is a malicious exploit of a website where unauthorized commands are transmitted from a user that the web application trusts. There are many ways in which a malicious website can transmit commands, such as specially-crafted image tags, hidden forms, and JavaScript XMLHttpRequests can all work without the user’s interaction or even knowledge. A distributed denial-of-service (DDoS) attack is a malicious attempt to disrupt normal traffic of a targeted server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of Internet traffic. A buffer overflow is an anomaly that occurs when a program overruns the buffer’s boundary and overwrites adjacent memory locations while writing data to a buffer.

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