CVE-2021-29447
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.012 Low
EPSS
Percentile
85.0%
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.
Affected configurations
References
packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html
packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html
blog.sonarsource.com/wordpress-xxe-security-vulnerability/
github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
lists.debian.org/debian-lts-announce/2021/04/msg00017.html
wordpress.org/news/category/security/
www.debian.org/security/2021/dsa-4896
Related
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.012 Low
EPSS
Percentile
85.0%