Language: Java
Label: vulnerable
CWE: CWE-611 \u2014 Improper Restriction of XML External Entity Reference
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

Code:
		public void store(ContentAssistHistory history, StreamResult result) throws CoreException {
			try {
				DocumentBuilderFactory factory= DocumentBuilderFactory.newInstance();
				DocumentBuilder builder= factory.newDocumentBuilder();
				Document document= builder.newDocument();

				Element rootElement = document.createElement(NODE_ROOT);
				rootElement.setAttribute(ATTRIBUTE_MAX_LHS, Integer.toString(history.fMaxLHS));
				rootElement.setAttribute(ATTRIBUTE_MAX_RHS, Integer.toString(history.fMaxRHS));
				document.appendChild(rootElement);

				for (Entry<String, MRUSet<String>> entry : history.fLHSCache.entrySet()) {
					String lhs = entry.getKey();
					Element lhsElement= document.createElement(NODE_LHS);
					lhsElement.setAttribute(ATTRIBUTE_NAME, lhs);
					rootElement.appendChild(lhsElement);
					for (String rhs : entry.getValue()) {
						Element rhsElement= document.createElement(NODE_RHS);
						rhsElement.setAttribute(ATTRIBUTE_NAME, rhs);
						lhsElement.appendChild(rhsElement);
					}
				}

				Transformer transformer=TransformerFactory.newInstance().newTransformer();
				transformer.setOutputProperty(OutputKeys.METHOD, "xml"); //$NON-NLS-1$
				transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); //$NON-NLS-1$
				transformer.setOutputProperty(OutputKeys.INDENT, "no"); //$NON-NLS-1$
				DOMSource source = new DOMSource(document);

				transformer.transform(source, result);
			} catch (TransformerException | ParserConfigurationException e) {
				throw createException(e, JavaTextMessages.ContentAssistHistory_serialize_error);
			}
		}