Using Sitecore Power Shell 6.4 on a Sitecore 9.1 instance.

Expected Behavior

Expect script to upload a file trough Receive-File

Actual Behavior

Get an exception:

[AccessDeniedException: Calling Spe.Client.Applications.UploadFile.PowerShellUploadFileForm.CancelClick method through reflection is not allowed.] Sitecore.Reflection.MethodFilter.Filter(MethodInfo method) +1166 Sitecore.Shell.Framework.Commands.CommandManager.GetMethodCommand(String command) +701 Sitecore.Web.UI.Sheer.ClientPage.Dispatch(String command) +35 Sitecore.Web.UI.Sheer.ClientPage.RaiseEvent() +124 Sitecore.Web.UI.Sheer.ClientPage.OnPreRender(EventArgs e) +806 System.Web.UI.Control.PreRenderRecursiveInternal() +200 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Steps to Reproduce the Problem

• Security Bulletin SC2023-003-587441 path must be installed.
• Click on either Ok or Cancel buttons from the Receive-File modal window throws the exception. Regardless of having or not a file selected.

Potential fix tried

As highlighted by the Security Bulleting page, tried to path exceptions for the mentioned methods on Sitecore.Reflection.Filtering.config.
I tried #1, then #2 and then #3. Finally all toguether, just to be sure.
Problem still persists.

Could it be a know issue? Thanks in advance of any advice.

• Tested issue with clean install of Sitecore and the latest available version of SPE.

• Asked questions on the Sitecore Slack Chat channel.

• Reviewed questions and answers on the Sitecore Stack Exchange.