The tweet mentions a WAF bypass related to XSS. It includes references to HackerOne, BugCrowd, and nuclei templates. The post provides a video and a writeup for further details. The payload used for the bypass is not specified in the tweet. It is a universal WAF bypass. More technical details are required for a blog post.
For more insights, check out the original tweet here: https://twitter.com/w0rms3c/status/1891065786162184444