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CVE-2021-39202

WordPress 5.8 beta: Stored Cross-Site Scripting (XSS) vulnerability in widget

Published: Sep 9, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-79
7.6HIGH
NVD MITRE
EPSS Score
0.8%
Top 46.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Nuclei · OpenVAS

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 the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

WordPress
oss-project·USaka wp, wordpress mu, wordpress.org
wordpress-develop
Web & CMS Plugins
wordpressOn-premWeb App
Web & CMS Plugins / cms-core
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
WordPress Foundation
oss-project·US
WordPress
Web & CMS Plugins

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297
github.com
https://hackerone.com/reports/1222797
hackerone.com
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297
github.com

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