This tweet mentions a Stored XSS vulnerability that can bypass the Cloudflare WAF. Stored XSS (Cross-Site Scripting) is a type of vulnerability where malicious scripts are stored on the target server and executed when other users access the affected data. Cloudflare WAF is a popular web application firewall used to protect websites from various attacks including XSS. The bypass indicates that attackers have found a way to get their malicious scripts through Cloudflare's WAF protections, which could be useful for bug bounty hunters looking to find vulnerabilities and improve web security. Unfortunately, the exact payload used for bypassing the WAF was not provided, so the technical details and method of bypass remain unknown from this tweet. Bug bounty researchers should look for ways to exploit stored XSS vulnerabilities while considering the protections of Cloudflare WAF and testing various payloads for bypassing its filters.
For more insights, check out the original tweet here: https://twitter.com/bountywriteups/status/1964490159195345300