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CVE-2025-24012

XSS/HTML Injection Vulnerability in Umbraco Backoffice Components

Severity
Medium 5.4
Published
21 Jan 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
14.3.2, 15.1.2
Also known as
GHSA-wv8v-rmw2-25wc
Sources
NVD, Project advisories (GitHub)

Description

Umbraco is a free and open source .NET content management system. Starting in version 14.0.0 and prior to versions 14.3.2 and 15.1.2, authenticated users are able to exploit a cross-site scripting vulnerability when viewing certain localized backoffice components. Versions 14.3.2 and 15.1.2 contain a patch.

Affected software

SoftwareAffected versions
Umbraco CMSServers and applications · cpe:a:umbraco:umbraco_cms
  • From 14.0.0 before 14.3.2
  • From 15.0.0 before 15.1.2
Umbraco CMSServers and applications · github:umbraco/umbraco-cms
  • From 14.0.0 before 14.3.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-24012
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-24012
  • GitHub Advisory Database https://github.com/advisories/GHSA-wv8v-rmw2-25wc
  • github.com https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-wv8v-rmw2-25wc