CVE-2026-54718

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Source
https://cve.org/CVERecord?id=CVE-2026-54718
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54718.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54718
Aliases
Published
2026-08-27T17:19:51Z
Modified
2026-10-28T02:30:33Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Silverstripe Advanced Workflow: Remote code execution via advanced workflow email template
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1336"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54718.json"
}
References

Affected packages

Git / github.com/silverstripe/silverstripe-advancedworkflow

Affected ranges

Type
GIT
Repo
https://github.com/silverstripe/silverstripe-advancedworkflow
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f170766af992ed2ed3e5f21d127d0d0d3129678b
Introduced
c40d774ccec59872dc95fc2d95a4365db3afdc18
Fixed
28d0b536491e5c68b1c445579bdd1ddc8beaf8bb
Introduced
063cd839c6c0204eac743b2eefb78f1585eea766
Fixed
8c4570aa115d97e8175968bf39020efdee60effc
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "6.4.5"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "introduced":  "7.0.0"
                },
                {
                    "fixed":  "7.1.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "introduced":  "7.2.0"
                },
                {
                    "fixed":  "7.2.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "28d0b536491e5c68b1c445579bdd1ddc8beaf8bb"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "f170766af992ed2ed3e5f21d127d0d0d3129678b"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "6.4.5",
            "range":  [
                {
                    "fixed":  "f170766af992ed2ed3e5f21d127d0d0d3129678b"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "7.1.3",
            "range":  [
                {
                    "fixed":  "28d0b536491e5c68b1c445579bdd1ddc8beaf8bb"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "7.2.1",
            "range":  [
                {
                    "fixed":  "8c4570aa115d97e8175968bf39020efdee60effc"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.0.0
1.1.0
1.1.1
1.2.0
1.3.0
1.3.1
2.*
2.0.0
2.1.0
3.*
3.0.1
3.0.1-rc1
3.0.2
3.0.3
3.0.4
3.0.5
3.0.6
3.1.0
3.1.1
3.1.2
3.2.0
3.2.1
3.2.2
3.2.3
3.3.0
3.3.1
3.3.2
5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.4.0-beta1
5.5.0
5.5.0-alpha1
5.5.0-beta1
5.5.0-rc1
5.6.0-beta1
5.7.0
6.*
6.0.0-beta1
6.1.0-beta1
6.2.0-beta1
6.3.0
6.3.0-beta1
6.3.0-rc1
6.4.0
6.4.0-beta1
6.4.0-rc1
6.4.1
6.4.2
6.4.3
6.4.4
7.*
7.0.0-alpha1
7.1.0
7.1.0-beta1
7.1.0-rc1
7.1.1
7.1.2
7.2.0
7.2.0-beta1
7.2.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54718.json"