Multiple cross-site scripting (XSS) vulnerabilities in Microsoft W3Who ISAPI (w3who.dll) allow remote attackers to inject arbitrary HTML and web script via (1) HTTP headers such as "Connection" or (2) invalid parameters whose values are echoed in the resulting error message.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.139
EPSS Ranking 94.0%