This tweet discusses a live hacking event called 1337UP0522 where the author found several interesting ways to bypass the ModSecurity Core Rule Set (CRS) Web Application Firewall (WAF). ModSecurity CRS is a widely-used set of generic attack detection rules for web applications. The tweet highlights the author's experience with discovering cool bypass techniques during this event, showcasing the challenge of protecting web applications even with established WAF rules like ModSecurity CRS. Unfortunately, the tweet does not provide specific payloads or technical details, but it emphasizes the continuous evolution of attack and defense methods in web security.
For more details, check out the original tweet here: https://twitter.com/0xInfection/status/1958916901985481187