Description
Umbraco is a free and open source .NET content management system. Authenticated users to the Umbraco backoffice are able to craft management API request that exploit a path traversal vulnerability to upload files into a incorrect location. The issue affects Umbraco 14+ and is patched in 14.3.4 and 15.3.1.
Scores
CVSS v3
8.8
EPSS
0.0039
EPSS Percentile
59.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-23
Status
published
Products (2)
nuget/Umbraco.Cms
14.0.0--preview004 - 14.3.4NuGet
umbraco/umbraco_cms
14.0.0 - 14.3.4
Published
Apr 08, 2025
Tracked Since
Feb 18, 2026