Do not use external XML entities

Docs > Code Analysis > Static Analysis Rules > Do not use external XML entities

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Metadata

ID: javascript-common-security/xml-no-external-entities

Language: JavaScript

Severity: Warning

Category: Security

Description

Process external entities in XML files may lead to XXE attack. Do not load external entities unless they have been explicitly checked.

Non-Compliant Code Examples

var libxmljs = require('libxmljs');
var fs = require('fs');

var xml = fs.readFileSync('file.xml', 'utf8');
libxmljs.parseXmlString(xml, {
    noent: true,
});

Compliant Code Examples

var libxmljs = require('libxmljs');
var fs = require('fs');

var xml = fs.readFileSync('file.xml', 'utf8');
libxmljs.parseXmlString(xml);