A recent tweet announces a successful bypass of the Vercel Web Application Firewall (WAF). Although the tweet does not specify the type of vulnerability exploited or the payload used, it confirms that Vercel's WAF has a bypass vulnerability. Vercel is a popular platform for frontend frameworks and static sites, and its WAF is designed to protect applications from web attacks. A bypass could allow attackers to exploit weaknesses without being blocked. More technical details about the vulnerability and bypass method are not provided in the tweet, so security researchers and users should remain vigilant and await further information or patches from Vercel. Bug bounty hunters may also find this an interesting challenge to explore the specifics of the bypass.
Check out the original tweet here: https://twitter.com/k_firsov/status/1997529320009736346