This tweet promotes the eWPTX certification, describing it as the 'boss fight' for web application penetration testing. It focuses on testing modern web applications that are API-heavy and protected by Web Application Firewalls (WAFs). The certification emphasizes practical, hands-on experience in breaking into real enterprise-level web apps, including APIs, SQL and NoSQL injection vulnerabilities, authentication and session management flaws, as well as WAF bypass techniques.

The tweet invites security professionals and pentesters to prove their skills in these advanced areas, highlighting the challenge posed by modern hardened web applications with multiple security layers.

While no specific WAF vendor or bypass payload is mentioned, the focus on WAF bypass suggests training on how to circumvent protections implemented by popular WAF vendors to exploit underlying web application vulnerabilities successfully.