Securing Websites Against XSS Attacks
Protect your web applications from malicious script injection.
What Is an XSS Attack?
Cross-Site Scripting lets attackers inject malicious scripts into websites. These scripts can steal data, hijack sessions, or redirect users to harmful pages.
Types of XSS Attacks
Stored XSS: Script stored on server and served to users
Reflected XSS: Script in URL or input, immediately reflected DOM-based XSS: Script executed by modifying the page’s DOM
Common XSS Risks
Account takeovers
Credential theft
Website defacement
User data exposure
Trust and reputation damage
How to Prevent XSS
Validate and sanitize all user inputs
Use output encoding/escaping
Implement Content Security Policy
Avoid inline JavaScript and unsafe DOM APIs
Final Tips & Tools
Use secure frameworks like React or Angular
Run regular security scans (e.g., OWASP
ZAP, Burp Suite)
Educate your dev team
Test your code for vulnerabilities before going live