The tweet mentions a cool hidden parameter that was discovered along with a WAF bypass. The bypass technique is not specified, and the WAF vendor is unknown. It seems to be related to a bug bounty program. More technical details are needed to analyze further.
For more insights, check out the original tweet here: https://twitter.com/0x_rood/status/1826365321504055719. And don’t forget to follow @0x_rood for more exciting updates in the world of cybersecurity.