XML parsing vulnerable to XXE for TransformerFactory

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Metadata

ID: java-security/xml-parsing-xxe-transformer

Language: Java

Severity: Warning

Category: Security

Description

Your code may be vulnerable XML if you process XML from an untrusted source. Make sure to enable secure processing when you process XML data.

For TransformerFactory , make sure you set XMLConstants.FEATURE_SECURE_PROCESSING to true.

Learn More

Non-Compliant Code Examples

class MyClass {

    public void test() {
        TransformerFactory factory = TransformerFactory.newInstance();
        factory.newTransformer();

        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.transform(input, result);
    }
    
}

Compliant Code Examples

class MyClass {

    public void test() {
        TransformerFactory factory = TransformerFactory.newInstance();
        factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
        Transformer transformer = factory.newTransformer();
    }
    
}