CVE-2026-57713: Marcus Aka @msykes Events Manager

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in Marcus (aka @msykes) Events Manager events-manager allows Object Injection.This issue affects Events Manager: from n/a through <= 7.3.6.

Affected products

• Marcus Aka @msykes Events Manager: up to and including 7.3.6

Published 2026-07-13. Last modified 2026-07-13.