CREST Practitioner Security Analyst (CPSA) Practice

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Master the CREST Practitioner Security Analyst Exam. Prepare with quizzes and comprehensive study guides that include tips and explanations. Excel in your certification journey!

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What does XSS stand for in web application security?

  1. Cross Service Scripting

  2. Cross Site Scripting

  3. Cross Source Scripting

  4. Cross System Security

The correct answer is: Cross Site Scripting

XSS stands for Cross Site Scripting, which is a type of security vulnerability found in web applications. This occurs when an attacker is able to inject malicious scripts into content that is later served to users. When users visit a page that contains these scripts, the malicious code runs in their browsers, potentially allowing the attacker to steal cookies, session tokens, or other sensitive information. Cross Site Scripting is a significant concern for web security as it can lead to various attacks, such as session hijacking and phishing, thereby compromising the integrity and confidentiality of user data. Understanding this term is essential for cybersecurity professionals, as it highlights the importance of user input validation and output encoding to mitigate such vulnerabilities and protect web applications from exploits.