Detections
Analytics

SCA: security update for Umbraco.Cms (GHSA-vr9v-27gg-qgx4)

medium Tenable Cloud Security Plugin ID 442284

Description

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

 - Umbraco is an ASP.NET CMS. From version 14.0.0 to before version 17.4.0, authenticated users are able to
 inject HTML into an input field, which is rendered in the confirmation dialog without proper output
 encoding. This issue has been patched in version 17.4.0. (CVE-2026-46609)

Solution

Update the Umbraco.Cms library and its related packages to version 17.4.0 or later.

See Also

https://github.com/advisories/GHSA-vr9v-27gg-qgx4

Plugin Details

Severity: Medium

ID: 442284

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/22/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.7

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-46609

CVSS v3

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 4

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/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: 5/21/2026

Vulnerability Publication Date: 5/21/2026

Reference Information

CVE: CVE-2026-46609

cwe: CWE-79