Description
Umbraco is an ASP.NET content management system (CMS). Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in versions 15.4.2 and 16.0.0. No known workarounds are available.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L
- Attack Vector
- network
- Complexity
- high
- Privileges
- low
- User Action
- required
- Scope
- changed
- Confidentiality
- low
- Integrity
- low
- Availability
- low
- Weaknesses
- CWE-434
Metadata
- Primary Vendor
- UMBRACO
- Published
- 6/3/2025
- Last Modified
- 9/22/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
umbraco : umbraco_cms
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