CVE-2026-78263: Nexcess Event Tickets

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Unauthenticated Cross Site Scripting (XSS) in Event Tickets <= 5.29.2.1 versions.

Affected products

• Nexcess Event Tickets: up to and including 5.29.2.1

Published 2026-08-24. Last modified 2026-08-26.