Cyber Security Vulnerability Testing

I'm seeking experienced cyber security advisors to test vulnerabilities on my website, specifically targeting Cross-Site Scripting (XSS).

Key areas for testing include:
- Login and Authentication
- User Input Forms
- Content Management System (CMS)

Ideal candidates should have:
- Proven experience in web security testing
- Expertise in identifying and mitigating XSS vulnerabilities
- Familiarity with various CMS platforms
- Strong analytical and reporting skills

Please provide relevant certifications and past project experience.