showdoc .cshtml file upload vulnerability

showdoc is an open source tool for IT teams to share documents online. showdoc versions prior to v2.10.4 are vulnerable to file uploads, which stem from the lack of effective detection of .cshtml and .axd file extensions in the application’s file upload functionality. An attacker could exploit this vulnerability to upload malicious files to execute malicious scripts in the user’s browser, steal user cookies, etc.