The tweet suggests studying the triggers for the 403 error and experimenting with encoding techniques to bypass the WAF. This approach indicates an attempt to evade the WAF's security mechanisms by manipulating the request data. It is important to understand the vulnerabilities and weaknesses in the WAF's configuration to effectively bypass it. Further analysis and testing are necessary to identify the specific bypass technique used in this scenario.
For more details, check out the original tweet here: https://twitter.com/Vecoyenka/status/1907825513294422031