RULE(RULE ID:333625)

Rule General Information
Release Date: 2021-06-03
Rule Name: Wordpress Upload File To XXE Vulnerability (CVE-2021-29447)
Severity:
CVE ID:
Rule Protection Details
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.
Impact: An attacker could exploit this vulnerability to have unspecified effect.
Affected OS: Windows, Linux, Others
Reference: https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
https://wordpress.org/news/category/security/
https://www.debian.org/security/2021/dsa-4896
Solutions
The vendor has released upgrade patches to fix vulnerabilities, please visit:
https://wordpress.org/news/2021/04/wordpress-5-7-1-security-and-maintenance-release/