VULNERABILITY INTELLIGENCE

CVE-2025-48953

CVSS score5.5 MEDIUM
EPSS probability0.19%
CISA KEVNot currently listed
Published2025-06-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L

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.

Weakness classification

  • security-advisories@github.com: CWE-434

Primary references