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CVE-2020-4049

Authenticated self-XSS via theme uploads in WordPress

Published: Jun 12, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-80
NVD MITRE
2.4CVSSLOW
EPSS Score
2.8%
Top 15.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
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Description

In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-80CWE-79

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
FedoraFedora Project
On-premOS
Operating Systems / linux-distro
WordPressWordPress FoundationWeb & CMS Plugins
wordpress-developWordPressWeb & CMS Plugins
wordpresswordpress
On-premWeb App
Web & CMS Plugins / cms-core
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
fedora projectoss-projectUSOperating Systemsaka fedora
wordpress foundationoss-projectUSWeb & CMS Plugins
wordpressoss-projectUSWeb & CMS Pluginsaka wp, wordpress.org, wordpress mu
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
wordpress.org
https://nvd.nist.gov/vuln/detail/CVE-2020-4049
nvd.nist.gov
https://security-tracker.debian.org/tracker/CVE-2020-4049
security-tracker.debian.org
and 10 more references View all →

Timeline

Published
Jun 12, 2020
Last Updated
Nov 21, 2024

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