Marco,
We are investigating this issue.
If you want to disable this feature, you can set the modify the security policy files.
And Set AllowModify to false.
..........
<security name="AllowUpload">true</security>
<security name="AllowModify">false</security>
<security name="AllowRename">true</security>
..........
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx