This tweet highlights an XSS vulnerability and its bypass. The bypass payload used was <script>alert('WAF Bypassed')</script>. It is mentioned that traditional XSS is not common nowadays. This signifies the importance of WAFs in protecting against such attacks, but also the need for continuous monitoring and updates to prevent bypasses.
For more details, check out the original tweet here: https://twitter.com/7h3h4ckv157/status/1839543548477108548