Detections
Analytics

SCA: security update for Umbraco.Forms (GHSA-hm5p-82g6-m3xh)

medium Tenable Self-Hosted Container Security Plugin ID 437398

Description

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

 - Umbraco Forms is a form builder that integrates with the Umbraco content management system. It's possible
 for an authenticated backoffice-user to enumerate and traverse paths/files on the systems filesystem and
 read their contents, on Mac/Linux Umbraco installations using Forms. As Umbraco Cloud runs in a Windows
 environment, Cloud users aren't affected. This issue affects versions 16 and 17 of Umbraco Forms and is
 patched in 16.4.1 and 17.1.1. If upgrading is not immediately possible, users can mitigate this
 vulnerability by configuring a WAF or reverse proxy to block requests containing path traversal sequences
 (`../`, `..\`) in the `fileName` parameter of the export endpoint, restricting network access to the
 Umbraco backoffice to trusted IP ranges, and/or blocking the `/umbraco/forms/api/v1/export` endpoint
 entirely if the export feature is not required. However, upgrading to the patched version is strongly
 recommended. (CVE-2026-24687)

See Also

https://github.com/advisories/GHSA-hm5p-82g6-m3xh

Plugin Details

Severity: Medium

ID: 437398

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 1/30/2026

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: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-24687

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/30/2026

Vulnerability Publication Date: 1/29/2026

Reference Information

CVE: CVE-2026-24687

cwe: CWE-22