This tweet shares information about an XSS payload WAF bypass, highlighting advanced techniques used for modern web security. However, the exact payload and the specific WAF vendor targeted are not mentioned in the tweet. The content seems educational, aiming to inform about bypassing web application firewalls (WAFs) that protect against cross-site scripting (XSS) vulnerabilities. The post encourages learning about modern methods to bypass WAF protections, which can help in understanding how attackers might evade security controls and how defenders can improve protection mechanisms. Since no technical details or specific payloads are given, further research and analysis would be needed to implement or defend against such bypass techniques.
Original tweet: https://twitter.com/UndercodeUpdate/status/1946054779836240216