StaticFileHandler.cs in System.Web in Mono before 1.2.5.2, when running on Windows, allows remote attackers to obtain source code of sensitive files via a request containing a trailing (1) space or (2) dot, which is not properly handled by XSP.
CRLF injection vulnerability in Sys.Web in Mono 2.0 and earlier allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the query string.
Multiple cross-site scripting (XSS) vulnerabilities in the ASP.net class libraries in Mono 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via crafted attributes related to (1) HtmlControl.cs (PreProcessRelativeReference), (2) HtmlForm.cs (RenderAttributes), (3) HtmlInputButton (RenderAttributes), (4) HtmlInputRadioButton (RenderAttributes), and (5) HtmlSelect (RenderChildren).