Covered the basics: malicious scripts injected into trusted sites, runs in the victim's browser, can steal session cookies or redirect users.
Define XSS clearly, then explain the three main types (stored, reflected, DOM-based) with a simple example. Describe the attack flow from injection to execution, and briefly mention prevention techniques like input validation and output encoding.
Pro tip: Emphasize that XSS exploits trust in a site's content, and relate it to NASA's context by noting the importance of securing web applications that handle sensitive data or control systems.
State that XSS is a code injection attack where malicious scripts are executed in a victim's browser, often to steal data or hijack sessions.
Briefly describe stored (persistent), reflected (non-persistent), and DOM-based XSS, highlighting how each delivers the payload.
Use a concrete example, such as a comment field that stores a script, which then runs when other users view the page.
Mention consequences like cookie theft, session hijacking, defacement, and keylogging, tying to potential risks in critical systems.
List key defenses: input validation, output encoding, Content Security Policy (CSP), and using secure frameworks.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.