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.
History

Tue, 03 Jun 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 03 Jun 2025 18:30:00 +0000

Type Values Removed Values Added
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.
Title Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-06-03T18:19:28.771Z

Updated: 2025-06-03T18:31:44.345Z

Reserved: 2025-05-28T18:49:07.585Z

Link: CVE-2025-48953

cve-icon Vulnrichment

Updated: 2025-06-03T18:31:34.794Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-03T19:15:39.423

Modified: 2025-06-04T14:54:33.783

Link: CVE-2025-48953

cve-icon Redhat

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