Detections
Analytics

SCA: security update for silverstripe/userforms (GHSA-g8wr-r2v2-vqc6)

high Tenable Cloud Security Plugin ID 446380

Description

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

 - Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9,
 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted
 payload that can be interpreted as executable server-side code. An authenticated CMS user with permission
 to configure a UserForms email recipient can use the subject field to run arbitrary code on the server,
 compromising confidentiality, integrity, and availability. This issue is fixed in versions 6.4.9, 7.0.7,
 and 7.1.1. (CVE-2026-54721)

Solution

Update the silverstripe/userforms library and its related packages to version 6.4.9 or later.

See Also

https://github.com/advisories/GHSA-g8wr-r2v2-vqc6

Plugin Details

Severity: High

ID: 446380

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 8/27/2026

Updated: 8/28/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.18

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-54721

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/27/2026

Vulnerability Publication Date: 8/27/2026

Reference Information

CVE: CVE-2026-54721