Top 38 Parameters - Cross-Site Scripting

What is the "Top 38 Parameters - Cross-Site Scripting" module?

The "Top 38 Parameters - Cross-Site Scripting" module is a test case designed to detect cross-site scripting (XSS) vulnerabilities in web applications. It targets the top 38 parameters commonly found in HTTP requests that are susceptible to XSS attacks. XSS vulnerabilities can allow attackers to inject malicious scripts into web pages viewed by other users, potentially leading to unauthorized access, data theft, or other malicious activities.

This module is intended for use by security professionals and developers to identify and remediate XSS vulnerabilities in their web applications. It provides valuable insights into potential security weaknesses and helps ensure the overall security of the application.

Impact

An XSS vulnerability can have severe consequences for a web application and its users. If successfully exploited, an attacker can manipulate the application to execute arbitrary code or steal sensitive information, such as login credentials or personal data. This can lead to unauthorized access, data breaches, and compromise of user privacy. It is crucial to address XSS vulnerabilities promptly to protect the integrity and security of the application and its users.

How does the module work?

The "Top 38 Parameters - Cross-Site Scripting" module works by sending HTTP requests to the target web application, specifically targeting the identified parameters. It then analyzes the responses received and applies matching conditions to identify potential XSS vulnerabilities. The module uses a set of predefined patterns and checks if any of these patterns are present in the response body.

For example, one of the matching conditions used by this module is the presence of the following pattern in the response body: '>"<svg/onload=confirm('q')>'. If this pattern is found, it indicates a potential XSS vulnerability in the corresponding parameter.

The module performs similar checks for all the identified parameters, providing a comprehensive assessment of the application's vulnerability to XSS attacks.

It is important to note that this module does not perform any modifications or exploit the identified vulnerabilities. Its primary purpose is to detect and report potential XSS vulnerabilities, allowing developers and security professionals to take appropriate remedial actions.