XSS Vulnerability Detection
xss-detection
SQL Injection Basics
sql-injection
CSRF Protection
csrf-protection
Secure Authentication
secure-auth
Content Security Policy
csp-implementation
Learn to identify and exploit Cross-Site Scripting (XSS) vulnerabilities in web applications.
// Vulnerable code:
function displayUserComment(comment) {
document.getElementById('comments').innerHTML += comment;
}
// Secure code:
function displayUserComment(comment) {
const sanitized = DOMPurify.sanitize(comment);
document.getElementById('comments').innerHTML += sanitized;
}