CVE-2021-33488: Open-Xchange Ox App Suite

Medium severity, CVSS 6.1. EPSS: 1.2% chance of exploitation in the next 30 days.

chat in OX App Suite 7.10.5 has Improper Input Validation. A user can be redirected to a rogue OX Chat server via a development-related hook.

Affected products

• Open-Xchange Ox App Suite: up to and including 7.10.5

Published 2021-11-22. Last modified 2026-06-17.