What does XSS stand for in a cybersecurity context?

In the context of cybersecurity, XSS stands for Cross-site Scripting. This is a type of security vulnerability commonly found in web applications where an attacker can inject malicious scripts into content that is then delivered to users. When other users interact with the malicious content, the script executes in their browsers, leading to potential exploitation of sensitive information, such as cookies or session tokens. Cross-site scripting can be classified into three main types: stored, reflected, and DOM-based, each varying in how the attack is carried out and how the malicious content is delivered.

Understanding XSS is crucial for developers and security professionals because preventing such vulnerabilities is a key part of creating secure web applications. Techniques to mitigate XSS include validating and sanitizing user inputs, implementing Content Security Policy (CSP), and properly escaping outputs.

The other provided options do not represent standard terminology in cybersecurity. They reference hypothetical security frameworks or concepts that do not exist in the same recognized context as Cross-site Scripting.