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A companyâs Web development team has become aware of a certain type of security vulnerability in their Web software. To mitigate the possibility of this vulnerability being exploited, the team wants to modify the software requirements to disallow users from entering HTML as input into their Web application. % % % %What kind of web application vulnerability likely exists in their software?
Cross-site Request Forgery vulnerability
Cross-site Scripting vulnerability
Web site defacement vulnerability
SQL injection vulnerability
Cross-site scripting, a security exploit in which the attacker inserts malicious client-side code into webpages, has been around since the 1990s and most major websites like Google, Yahoo and Facebook have all been affected by cross-site scripting flaws at some point. Attacks exploiting XSS vulnerabilities can steal data, take control of a user's session, run malicious code, or be used as part of a phishing scam.
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