Today, I learned about Cross-Site Scripting (XSS), a common web security vulnerability that allows attackers to inject malicious JavaScript into trusted websites. Unlike CSS (Cascading Style Sheets), XSS enables cybercriminals to steal user data, hijack sessions, and manipulate website content.
How XSS Works
An attacker sends a malicious email containing a deceptive link. When the victim clicks it, the injected script runs on a trusted website, capturing session cookies or login credentials. A persistent XSS attack is even more dangerous because it stores the malicious script directly on a website, affecting every visitor who views the infected page.
How to Prevent XSS Attacks
- Sanitize Input – Websites must filter user input to prevent script injections.
- Use Content Security Policies (CSP) – Restricts scripts from running on unauthorized domains.
- Stay Vigilant – Avoid clicking unknown links and keep software updated.
XSS remains a serious cybersecurity threat, but with proper security measures, both developers and users can stay protected.
Think Positive Cyber 