The tweet discusses the importance of understanding WAF filters and bypass techniques used by different vendors. It highlights the need to identify vulnerabilities and craft payloads effectively. The mentioned bypass payload is a simple XSS payload that alerts 'Bypassed!' when executed. Understanding such payloads can help in testing and improving WAF security measures.
Check out the original tweet here: https://twitter.com/kakpozvonitru/status/1897324701665439897