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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...A potentially dangerous Request.Form value was detected from the clientA potentially dangerous Request.Form value was detected from the client
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4/16/2012 1:34 AM
 
klob1100


Joined: 10/26/2011
Posts: 29
Hi all,

I am new to DNN. And I have been experiencing this error. I don't know what's causing it.
I think i really need some help on this one.  This error occur everytime I do changes on admin side. like adding page, edit the content of HTML module, or any other command/button from admin site. I cannot find what is causing the error.

Please help.
Thank you.

below is the error:

AssemblyVersion: 5.5.1
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL: /Default.aspx?tabid=42&error=A+potentially+dangerous+Request.Form+value+was+detected+from+the+client+(RibbonBar.ascx%24EditPage%24SkinLst%3d%22%3cUse+Default+Site+Sk...%22).&content=0
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20100101 Firefox/11.0
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 89181a1d-917c-4d92-a93a-d3c62c514b55
InnerException: A potentially dangerous Request.QueryString value was detected from the client (error="...$SkinLst="<Use Default Site Sk...").
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.HttpRequest.ValidateString
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: A potentially dangerous Request.QueryString value was detected from the client (error="...$SkinLst="<Use Default Site Sk..."). ---> System.Web.HttpRequestValidationException: A potentially dangerous Request.QueryString value was detected from the client (error="...$SkinLst="<Use Default Site Sk..."). at System.Web.HttpRequest.ValidateString(String value, String collectionKey, RequestValidationSource requestCollection) at System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, RequestValidationSource requestCollection) at System.Web.HttpRequest.get_QueryString() at DotNetNuke.HttpModules.UrlRewriteModule.RewriteUrl(HttpApplication app) at DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace ---
Source:
 
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4/18/2012 9:32 PM
 
klob1100


Joined: 10/26/2011
Posts: 29
I have also tried to upgrade .Net framework to 4 and set validateRequest to false and it worked. It does not show the error anymore. The problem is that, I cannot let the validationRequest set to false since it will only set my site prone to SQL injections.

Do you have any other solutions?
 
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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...A potentially dangerous Request.Form value was detected from the clientA potentially dangerous Request.Form value was detected from the client


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