GHSA-6H8R-XR42-GP59 xmldom: Parser silently accepts a not-well-formed end tag whose name is followed by a line break and trailing content

Summary xmldom's parser silently accepts a not-well-formed end tag whose valid name is followed by trailing content — e.g. . The element is closed, the trailing content is discarded, and no error is reported, even though the XML end-tag production allows only optional whitespace after the name an...