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CVE-2024-55488

Published: Jan 22, 2025Updated: Dec 31, 2025 Sources: CVE List NVD GHSA BDUCWE-79
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 77.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

A stored cross-site scripting (XSS) vulnerability in Umbraco CMS v14.3.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload. NOTE: This has been disputed by the vendor since this potential attack is only possible via authenticated users who have been manually allowed access to the CMS. There was a deliberate decision made not to apply HTML sanitization at the product level.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

umbraco cmsumbraco
On-premCMS Plugin
Web & CMS Plugins / cms-core
Umbraco CMSUmbraco
On-premCMS Plugin
Web & CMS Plugins / cms-core
Umbraco.Cms.InfrastructureNuGetOSS Libraries
n/an/a
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

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

http://umbraco.com
umbraco.com
https://www.nccgroup.com/us/research-blog/technical-advisory-cross-site-scripting-in-umbraco-rich-text-display/
nccgroup.com
https://nvd.nist.gov/vuln/detail/CVE-2024-55488
nvd.nist.gov
and 7 more references View all →

Timeline

Published
Jan 22, 2025
Last Updated
Dec 31, 2025

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