SCA: security update for Umbraco.Cms (GHSA-hfv2-pf68-m33x)

medium Tenable Cloud Security Plugin ID 436317

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Umbraco is an ASP.NET CMS. Due to unsafe handling and deletion of temporary files in versions 10.0.0
through 13.12.0, during the dictionary upload process an attacker with access to the backoffice can
trigger predictable requests to temporary file paths. The application’s error responses (HTTP 500 when a
file exists, 404 when it does not) allow the attacker to enumerate the existence of arbitrary files on the
server’s filesystem. This vulnerability does not allow reading or writing file contents. In certain
configurations, incomplete clean-up of temporary upload files may additionally expose the NTLM hash of the
Windows account running the Umbraco application. This issue is fixed in version 13.12.1. (CVE-2025-66625)

See Also

https://github.com/advisories/GHSA-hfv2-pf68-m33x

Plugin Details

Severity: Medium

ID: 436317

Version: Revision 1.13

Type: Local

Family: SCA Checks

Published: 12/9/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:N/A:N

CVSS Score Source: CVE-2025-66625

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/9/2025

Vulnerability Publication Date: 12/9/2025

Reference Information

CVE: CVE-2025-66625