CVE-2026-77129: high-severity vulnerability in TYPO3 Extension "Event management and…
Server-Side Template Injection in extension "Event management and registration" (sf_event_mgt)
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.4%
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.
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
Affected products
TYPO3 · Extension "Event management and registration"Related CVEs — TYPO3 Extension "Event management and…
In the same product, most dangerous first.