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CVE-2024-35218

Umbraco CMS Vulnerable to Stored XSS on Content Page Through Markdown Editor Preview Pane

Published: May 21, 2024Updated: Feb 12, 2025 Sources: CVE List NVD GHSACWE-79
NVD MITRE
4.2CVSSMEDIUM
EPSS Score
0.4%
Top 73.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Umbraco CMS is an ASP.NET CMS used by more than 730.000 websites. Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application. This vulnerability has been patched in version(s) 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementing IHtmlSanitizer.

CVSS Vector Breakdown

AV:NAC:HPR:HUI:RS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

umbraco cmsumbraco
On-premCMS Plugin
Web & CMS Plugins / cms-core
UmbracoCms.CoreNuGetOSS Libraries
Umbraco-CMSumbraco
On-premCMS Plugin
Web & CMS Plugins / cms-core
umbracocommercialDKWeb & CMS Pluginsaka umbraco cms, umbraco forms, umbraco-cms
nugetpackage-ecosystemOSS Libraries

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://github.com/umbraco/Umbraco-CMS/commit/1b712fe6ec52aa4e71b3acf63e393c8e6ab85385
github.com
https://github.com/umbraco/Umbraco-CMS/commit/a2684069b1e9976444f60b4b37a80be05b87f6b6
github.com
https://github.com/umbraco/Umbraco-CMS/commit/cbf9f9bcd199d7ca0412be3071d275556f10b7ba
github.com
and 4 more references View all →

Timeline

Published
May 21, 2024
Last Updated
Feb 12, 2025

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