Vulnerability details
CVE-2021-29447
WordPress wordpress-develop
WordPress Authenticated XXE attack when installation is running PHP 8
CVSS 3.1
7.1High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.1High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| WordPress | wordpress-develop | >= 5.6.0, < 5.7.1 | CVEProject cvelistV5 (CNA) |
References and advisories
7- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh x_refsource_CONFIRM
- https://wordpress.org/news/category/security/ x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html mailing-listx_refsource_MLIST
- https://www.debian.org/security/2021/dsa-4896 vendor-advisoryx_refsource_DEBIAN
- http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html x_refsource_MISC
- http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html x_refsource_MISC
- https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ x_refsource_MISC
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Details
- Published
- 2021-04-16
- Last updated
- 2024-08-04
- State
- Published
- Assigner (CNA)
- GitHub_M
- Kolun priority
- 46 · Medium
Exploit prediction (EPSS)
85.71%
Probability of exploitation in 30 days
99.7%
Percentile (among all CVEs)
Weaknesses (CWE)
- CWE-611{"CWE-611":"Improper Restriction of XML External Entity Reference"}