Server Error in '/' Application.

A potentially dangerous Request.QueryString value was detected from the client (="...ostel.com/</layer>").

Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case.

Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.QueryString value was detected from the client (="...ostel.com/</layer>").

Source Error:



An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[HttpRequestValidationException (0x80004005): A potentially dangerous Request.QueryString value was detected from the client (="...ostel.com/</layer>").]
   System.Web.HttpRequest.ValidateString(String s, String valueName, String collectionName) +240
   System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, String collectionName) +99
   System.Web.HttpRequest.get_QueryString() +113
   System.Web.UI.Page.GetCollectionBasedOnMethod() +83
   System.Web.UI.Page.DeterminePostBackMode() +128
   System.Web.UI.Page.ProcessRequestMain() +2094
   System.Web.UI.Page.ProcessRequest() +217
   System.Web.UI.Page.ProcessRequest(HttpContext context) +18
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute() +179
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +87

Version Information: Microsoft .NET Framework Version:1.1.4322.2407; ASP.NET Version:1.1.4322.2407