CVE-2026-54718High· 7.2▾ TwilightSilverstripe 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 te…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.6 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 28.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.7%
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
symbiote/silverstripe-advancedworkflow < 6.4.5symbiote/silverstripe-advancedworkflow >= 7.0.0, < 7.1.3symbiote/silverstripe-advancedworkflow >= 7.2.0, < 7.2.1Patched in:
symbiote/silverstripe-advancedworkflow 6.4.5symbiote/silverstripe-advancedworkflow 7.1.3symbiote/silverstripe-advancedworkflow 7.2.1Connected by shared product, vendor, weakness, or advisory.
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