CVE-2021-29447 HIGH

CVE-2021-29447: WordPress Authenticated XXE attack when installation is running PHP 8

Vendor Wordpress
Product wordpress-develop
Weakness CWE-611 · XXE
Published April 15, 2021
Last update August 3, 2024
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 15, 2021 CVE published
August 3, 2024 Record updated