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CVE-2021-39203

Private data disclosure/privilege escalation through the block editor in Wordpress

Published: Sep 9, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-200
NVD MITRE
6.8CVSSMEDIUM
EPSS Score
0.9%
Top 44.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?2 Nuclei templates available — see how to check your systems. How to verify

Description

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-200NVD-CWE-noinfo

Affected Products

wordpresswordpress
On-premWeb App
Web & CMS Plugins / cms-core
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
WordPressWordPress FoundationWeb & CMS Plugins
wordpress-developWordPressWeb & CMS Plugins
wordpressoss-projectUSWeb & CMS Pluginsaka wp, wordpress.org, wordpress mu
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
wordpress foundationoss-projectUSWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-qxvw-qxm9-qvg6
github.com
https://hackerone.com/reports/1225282
hackerone.com

Timeline

Published
Sep 9, 2021
Last Updated
Nov 21, 2024

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