XML Injection Affecting xmldom package, versions *
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Test your applications- Snyk IDSNYK-JS-XMLDOM-15869637
- published1 Apr 2026
- disclosed1 Apr 2026
- creditAli Firas
Introduced: 1 Apr 2026
NewCVE-2026-34601 (opens in a new tab)How to fix?
There is no fixed version for xmldom.
Overview
xmldom is an A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.
Affected versions of this package are vulnerable to XML Injection via the XMLSerializer() function. An attacker can manipulate the structure and integrity of generated XML documents by injecting attacker-controlled markup containing the CDATA terminator ]]> through CDATA section content, which is not properly validated or sanitized during serialization. This can result in unauthorized XML elements or attributes being inserted, potentially leading to business logic manipulation or privilege escalation in downstream consumers.