🛡️ CVE-2025-48953
🟡 CVSS 5.5 — Medium ✅ No Known Exploit CWE-434 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L
CWE CWE-434
Public Exploit ✅ No
Source NVD
Published 2025-06-03
Updated 2026-06-02
Modified 2025-09-22

Affected Packages

Software From version Fixed in
umbraco-cms 14.0.0 15.4.2
umbraco.cms 14.0.0 15.4.2

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