CVE-2025-48953 – umbraco.cms

Package

Manager: nuget
Name: umbraco.cms
Vulnerable Version: >=14.0.0 <15.4.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00043 pctl0.12115

Details

Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads ### Impact Via a manipulated API request it's possible to upload a file that doesn't adhere with the configured allowable file extensions. ### Patches Patched in 15.4.2 and 16.0.0. ### Workarounds None available.

Metadata

Created: 2025-06-04T23:50:55Z
Modified: 2025-06-04T23:50:55Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/06/GHSA-fr6r-p8hv-x3c4/GHSA-fr6r-p8hv-x3c4.json
CWE IDs: ["CWE-434"]
Alternative ID: GHSA-fr6r-p8hv-x3c4
Finding: F027
Auto approve: 1