CVE Catalog

CVE-2026-77129

HighCVSS 7.7
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

14th percentile - higher than 14% of all known CVEs

Summary

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 requires an authenticated backend account with edit access to the event registration plugin or backend module.

Risk Assessment

An attacker with edit privileges can disclose sensitive data or execute arbitrary TypoScript, potentially leading to confidentiality and integrity breaches.

Recommendation

Restrict or properly secure the email subject field to prevent Fluid syntax injection, e.g., through validation and input filtering.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS