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CVE-2021-29447
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 4/10
- Exploit Score
- 8/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- Single
- Impact Score
- 2.9/10
- Confidentiality Impact
- Partial
- Availability Impact
- None
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 6.5/10
- Exploit Score
- 2.8/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 3.6/10
- Confidentiality Impact
- High
- Availability Impact
- None
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* |
Yes
|
5.6.0 | 5.7.1 | |
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://wordpress.org/news/category/security/
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
- https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
- https://www.debian.org/security/2021/dsa-4896
- http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-W
- http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.ht
- https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/