Here is the new patch for the Vulnerability in Windows SharePoint Services 3.0 and Office SharePoint Server 2007 Could Result in Elevation of Privilege Within the SharePoint Site (942017)

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Also, read this from Ian Morrish (WSS Demo Blog), where he shares his experience about installing this patch.

-Guru

Use Relative node name within Node collection to access the properties. Do not use absolute path to access the values.

Let us say, you wanted to loop through the node collection and access the value for the child node for each node in the collection.

//Parent Node

XPathNavigator selectNode = tempXPath.SelectSingleNode("/my:ExpenseReport/my:TravelExpenses/my:travelExpense[" + i + "]", NamespaceManager);

//Do not use the below mentioned way(Absolute path) to access the values of the elements

//XPathNavigator tempNode = selectNode.SelectSingleNode("/my:ExpenseReport/my:TravelExpenses/my:travelExpense/my:travelExpenseCategory", NamespaceManager);

//Instead use relative node name like show below, to access the child node

XPathNavigator tempNode = selectNode.SelectSingleNode("my:travelExpenseCategory", NamespaceManager);

Hint: "my:travelExpenseCategory" is the child node under my:travelExpense

Note: If you use absolute path, you will always end up getting the Value from the first element, even though your cursor is at the specified(by variable i) element.

This may be not be a common mistake, nonetheless, I just wanted to share this piece.

Hope that helps!