High IssueSecurity
XSS (Cross-Site Scripting) Vulnerability
Attackers can inject malicious JavaScript, stealing user data or hijacking sessions.
What You're Seeing
- Unexpected JavaScript popups
- User sessions hijacked
- Redirects to malicious sites
Why This Happens
- 1Displaying user input without sanitization
- 2Not escaping output
- 3Vulnerable comment systems
How We Fix It
Our senior engineers follow this systematic approach to resolve the issue quickly and permanently.
Escape Output: Use htmlspecialchars() or WordPress escaping functions (esc_html, esc_attr).
Validate Input: Sanitize all user input.
CSP: Implement Content Security Policy headers.
Preventing This Issue
Always escape output, validate input, use CSP, HTTPOnly cookies, avoid inline JavaScript.
Related Guides
If you're experiencing this issue, you may also want to check these related problems:
- SQL Injection Vulnerability - Security flaw allowing attackers to inject malicious SQL into database queries.
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