Mura CMS: By default, Mura will not throw a 404 on missing ".cfm" files. This is intended behaviour so that you can integrate existing applications with Mura. If you wish to override this behaviour, use the method in this Gist.

mura404.cfm

<cfscript>
	// drop this into your SITE or THEME eventHandler.cfc to trigger a 404 on missing .cfm files
	public any function onSiteRequestStart($) {
		request.uri = GetPageContext().GetRequest().GetRequestURI();
		request.template = Right(request.uri, 1) != '/' ? ListLast(request.uri, '/') : '';
		if ( Len(request.template) && !FileExists(ExpandPath(request.template)) ) {
			request.currentfilenameadjusted = request.template;
		}
	}
</cfscript>