CVE-2021-29447

Katalog CVE

CVSS 6.5 · Medium EPSS 85,7%

Kerentanan Improper Restriction of XML External Entity Reference pada wordpress, debian linux. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

15 April 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-611: Improper Restriction of XML External Entity Reference

EPSS (30 hari)

85,7% peluang dieksploitasi; lebih tinggi dari 99,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://wordpress.org/news/category/security/ release notes · advisory vendor
• http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html advisory pihak ketiga · vdb entry
• http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html exploit · advisory pihak ketiga · vdb entry
• https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ exploit · advisory pihak ketiga
• https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html mailing list · advisory pihak ketiga
• https://www.debian.org/security/2021/dsa-4896 advisory pihak ketiga