CVEvulnerability
CVE-2026-54718
7.2 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-27
- Last modified
- 2026-09-09
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-1336
Description
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.
Related
Weakness · CWE (1)
- CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine weakness
References
- https://github.com/silverstripe/silverstripe-advancedworkflow/commit/28d0b536491e5c68b1c445579bdd1ddc8beaf8bb github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/commit/f170766af992ed2ed3e5f21d127d0d0d3129678b github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/pull/629 github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/pull/630 github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/releases/tag/6.4.5 github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/releases/tag/7.1.3 github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/releases/tag/7.2.1 github.com
- https://github.com/silverstripe/silverstripe-advancedworkflow/security/advisories/GHSA-39mm-rwm3-29jp github.com
- https://www.silverstripe.org/download/security-releases/cve-2026-54718 www.silverstripe.org