SCA: security update for symbiote/silverstripe-advancedworkflow (GHSA-39mm-rwm3-29jp)

high Tenable Cloud Security Plugin ID 446378

Description

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

- Silverstripe Advanced Workflow is a highly configurable step-based workflow module. Prior to 6.4.5, 7.1.3,
and 7.2.1, an attacker with permission to author the advanced workflow email template can place a
specially crafted server-side template payload in NotifyUsersWorkflowAction.EmailTemplate. When
NotifyUsersWorkflowAction renders the field through the Silverstripe template engine SSTemplateParser, the
payload can cause PHP evaluation and arbitrary code execution on the server; the regression coverage is in
tests/php/WorkflowEngineTest.php. This issue is fixed in versions 6.4.5, 7.1.3, and 7.2.1.
(CVE-2026-54718)

Solution

Update the symbiote/silverstripe-advancedworkflow library and its related packages to version 6.4.5 or later.

See Also

https://github.com/advisories/GHSA-39mm-rwm3-29jp

Plugin Details

Severity: High

ID: 446378

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: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-54718

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/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-2026-54718