CVE-2024-55488

MEDIUM

Umbraco CMS 14.3.1 - Authenticated Stored Cross-Site Scripting in Rich Text Display

Title source: llm

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.

References (2)

Core 2

Core References

Product

http://umbraco.com

Exploit, Third Party Advisory

https://www.nccgroup.com/us/research-blog/technical-advisory-cross-site-scripting-in-umbraco-rich-text-display/

Scores

CVSS v3 6.5

EPSS 0.0029

EPSS Percentile 52.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (2)

nuget/Umbraco.Cms.Infrastructure 0 - 15.0.0NuGet

umbraco/umbraco_cms 14.3.1

Published Jan 22, 2025

Tracked Since Feb 18, 2026