The extension passes an editor-configurable email subject string directly into a Fluid template source without restriction. A backend user with edit access to the event plugin or Backend Module can supply Fluid ViewHelper syntax in this field to disclose sensitive data or execute TypoScript content objects. Exploitation of this issue requires an authenticated backend account with edit access to the event registration plugin or backend module.
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Fixes

Solution

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Workaround

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History

Tue, 25 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
Description The extension passes an editor-configurable email subject string directly into a Fluid template source without restriction. A backend user with edit access to the event plugin or Backend Module can supply Fluid ViewHelper syntax in this field to disclose sensitive data or execute TypoScript content objects. Exploitation of this issue requires an authenticated backend account with edit access to the event registration plugin or backend module.
Title Server-Side Template Injection in extension "Event management and registration" (sf_event_mgt)
Weaknesses CWE-1336
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-08-25T09:00:44.104Z

Reserved: 2026-08-20T13:10:12.062Z

Link: CVE-2026-77129

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-25T09:17:33.200

Modified: 2026-08-25T09:17:33.200

Link: CVE-2026-77129

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses