CVE-2021-29447
WordPress Authenticated XXE attack when installation is running PHP 8
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.
INFO
Published Date :
April 15, 2021, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 6:01 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-29447
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Upgrade WordPress to version 5.7.1 or later.
- Upgrade the WordPress packages.
Public PoC/Exploit Available at Github
CVE-2021-29447 has a 132 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-29447.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-29447 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-29447
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Vulnerable real-world applications lab — 11 CVEs, 15 containers, real exploits, real RCE
Dockerfile Python Shell
None
None
Shell PHP
None
None
A curated and comprehensive collection of 500+ free TryHackMe rooms, organized into logical categories for easy navigation. Master cyber security fundamentals, penetration testing, and CTF challenges without a premium subscription. Curated and maintained by Alberto Drake
free active-directory ctf cybersecurity ethical-hacking forensics free-resources hacking-tutorial infosec linux-fundamentals networking penetration-testing privilege-escalation room-database tryhackme web-security alberto-drake
None
Python
Cyber-Security Free learning path on TryHackMe, all free rooms.
thm ctfs writeups..
thm tryhackme-writeups
None
Python
Curated list of 390+ Free TryHackMe rooms organized by topic • Start hacking today – no premium needed!
Well Structured roadmap of 350+ free TryHackMe rooms to learn cybersecurity step-by-step. Covers Linux, networking, web, pentesting, OSINT & more. Focus on hands-on practice, building strong fundamentals before exploring advanced or premium content.
None
TryHackMe rooms💻 to kick off your cybersecurity learning,
These are the free rooms in tryhackme organized in order for beginer - intermediate/advanced lvl hackers...
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-29447 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-29447 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html Added Reference http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html Added Reference https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ Added Reference https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh Added Reference https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html Added Reference https://wordpress.org/news/category/security/ Added Reference https://www.debian.org/security/2021/dsa-4896 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 27, 2022
Action Type Old Value New Value Changed Reference Type https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ No Types Assigned https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ Exploit, Third Party Advisory -
CVE Modified by [email protected]
Sep. 13, 2022
Action Type Old Value New Value Added Reference https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/ [No Types Assigned] -
Modified Analysis by [email protected]
Dec. 16, 2021
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html No Types Assigned http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html No Types Assigned http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html Exploit, Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Sep. 20, 2021
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 15, 2021
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html [No Types Assigned] -
Modified Analysis by [email protected]
Jun. 02, 2021
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2021/dsa-4896 No Types Assigned https://www.debian.org/security/2021/dsa-4896 Third Party Advisory Added CWE NIST CWE-611 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 23, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4896 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 22, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh No Types Assigned https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html Mailing List, Third Party Advisory Changed Reference Type https://wordpress.org/news/category/security/ No Types Assigned https://wordpress.org/news/category/security/ Release Notes, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.6.0 up to (excluding) 5.7.1 -
CVE Modified by [email protected]
Apr. 21, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html [No Types Assigned]