What are XSS vulnerabilities and how can I prevent them?

What are XSS vulnerabilities and how can I prevent them?

XSS, or Cross-Site Scripting, is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by users. To prevent XSS, you can sanitize user inputs, use Content Security Policy (CSP), and validate data on the server side.

Can you give me examples of XSS attacks?

Sure! One common example is a reflected XSS attack, where a malicious script is reflected off a web server, often via a URL. Another is stored XSS, where the script is stored on the server and served to users.

How can I test my website for XSS vulnerabilities?

You can use tools like OWASP ZAP or Burp Suite to scan your website for XSS vulnerabilities. Additionally, manual testing by trying to inject scripts can help identify weaknesses.

What are the consequences of an XSS attack?

Consequences can include data theft, session hijacking, defacement of websites, and spreading malware to users.