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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-29447 Detail

Description

Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html Exploit  Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html Exploit  Third Party Advisory  VDB Entry 
https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ Exploit  Third Party Advisory 
https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ Exploit  Third Party Advisory 
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh Third Party Advisory 
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html Mailing List  Third Party Advisory 
https://wordpress.org/news/category/security/ Release Notes  Vendor Advisory 
https://wordpress.org/news/category/security/ Release Notes  Vendor Advisory 
https://www.debian.org/security/2021/dsa-4896 Third Party Advisory 
https://www.debian.org/security/2021/dsa-4896 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-611 Improper Restriction of XML External Entity Reference cwe source acceptance level NIST   GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-29447
NVD Published Date:
04/15/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.