CVE-2026-42687: Eventprime

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Unauthenticated PHP Object Injection in EventPrime <= 4.3.2.1 versions.

Affected products

• Eventprime Eventprime: up to and including 4.3.2.1

Published 2026-06-15. Last modified 2026-06-17.