The tweet mentions finding a potential XSS (Cross-Site Scripting) vulnerability on a new target, but it is being blocked by Web Application Firewalls (WAFs). The user is requesting recommendations for good courses or learning materials on WAF bypass techniques, indicating they want to learn how to bypass WAF protections to test for vulnerabilities like XSS. However, the tweet does not provide any specific WAF bypass payload or details about the vendor of the WAF involved.
Check out the original tweet here: https://twitter.com/0xObsidian_X/status/1999570393581899856