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XSS/HTML Injection Vulnerability in Umbraco Backoffice Components

Moderate
AndyButland published GHSA-wv8v-rmw2-25wc Jan 21, 2025

Package

npm @umbraco-cms/backoffice (npm)

Affected versions

>=14.0.0

Patched versions

14.3.2,15.1.2
nuget Umbraco.Cms.StaticAssets (NuGet)
>=14.0.0
14.3.2, 15.1.2

Description

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

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVE ID

CVE-2025-24012

Weaknesses

Credits