CVE-2021-29447

MediumCVSS 6.5/10Last modified Jun 17, 2026

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

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-611

Affected software

No affected versions have been published.

Timeline

Published: Apr 15, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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