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cpe:2.3:a:microsoft:xml_notepad:*:*:*:*:*:windows:*:*

part: a version: * update: *

VendorMicrosoft (67206627-3ef6-5870-9d98-26a9f2e7065c)
ProductXml Notepad (5c2efa53-3614-5ef3-87d8-a4c81558b5ee)
Edition*
Language*
Software edition*
Target softwarewindows
Target hardware*
Other*
NotesImported from purl2cpe mapping

PURL mappings

PURLSourceLast updated
pkg:github/microsoft/xmlnotepad purl2cpe 2026-06-01 10:17:06.648165

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2026-34401 vulnerable 2026-06-08 07:59:12.476909 XML Notepad: XML External Entity (XXE) Injection via Unsafe XmlTextReader in XML Diff and Schema Loading
MEDIUM (6.5)
XML Notepad is a Windows program that provides a simple intuitive User Interface for browsing and editing XML documents. Prior to version 2.9.0.21, XML Notepad does not disable DTD processing by default which means external entities are resolved automatically. There is a well known attack related to malicious DTD files where an attacker to craft a malicious XML file that loads a DTD that causes XML Notepad to make outbound HTTP/SMB requests, potentially leaking local file contents or capturing the victim's NTLM credentials. This issue has been patched in version 2.9.0.21.
Published: 2026-03-31T21:05:50.647Z
Updated: 2026-04-01T15:53:18.538Z
Reference links
Imported from gcve-enriched-dumps CVE data

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