A web application allows users to input text into a comment field. A malicious user enters a script that executes in the browsers of other users viewing the comment. This is known as:

Answer options:

SQL Injection

Cross-Site Scripting (XSS)

Buffer Overflow

Denial of Service

How to approach this question

Keywords: 'script', 'browser', 'other users'.

Full Answer

B.Cross-Site Scripting (XSS)✓ Correct

Cross-Site Scripting (XSS) occurs when an application includes untrusted data in a web page without proper validation, allowing scripts to execute in the victim's browser.

Common mistakes

Confusing XSS with SQL Injection (which targets the server/database).

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