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CVE-2025-24012 — XSS/HTML Injection Vulnerability in...

MEDIUM

XSS/HTML Injection Vulnerability in Umbraco Backoffice Components

Published January 21, 2025Updated February 20, 2025Source: osv

Summary

### Impact Authenticated users are able to exploit an XSS vulnerability when viewing certain localized backoffice components. ### Patches Will be patched in 14.3.2 and 15.1.2. Note: This issue was reported by Pratik Patil from NetSPI @Nexusss-ppatil

Advisory Timeline

  • First published January 21, 2025 (629 days ago).
  • Last revised February 20, 2025 — 30 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update @umbraco-cms/backoffice to 15.1.2 or later
npm install @umbraco-cms/backoffice@15.1.2
NuGet
Update Umbraco.Cms.StaticAssets to 15.1.2 or later
dotnet add package Umbraco.Cms.StaticAssets --version 15.1.2
npm
Update @umbraco-cms/backoffice to 14.3.2 or later
npm install @umbraco-cms/backoffice@14.3.2
NuGet
Update Umbraco.Cms.StaticAssets to 14.3.2 or later
dotnet add package Umbraco.Cms.StaticAssets --version 14.3.2

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 2 ecosystems: npm (1), nuget (1).

PackageEcosystemAffectedFixed In
@umbraco-cms/backoffice
npm
All versions15.1.2
Umbraco.Cms.StaticAssets
nuget
15.0.0, 15.1.0, 15.1.0-rc, 15.1.0-rc2 (+1 more)15.1.2
@umbraco-cms/backoffice
npm
All versions14.3.2
Umbraco.Cms.StaticAssets
nuget
14.0.0, 14.1.0, 14.1.0-rc, 14.1.0-rc2 (+9 more)14.3.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 4.6 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

References

Frequently Asked Questions

What is CVE-2025-24012?
XSS/HTML Injection Vulnerability in Umbraco Backoffice Components This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 4.6/10).
How do I check if my project is affected by CVE-2025-24012?
CVE-2025-24012 affects @umbraco-cms/backoffice and Umbraco.Cms.StaticAssets. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-24012 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
4.6

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-wv8v-rmw2-25wc

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