CVE-2021-44211: Open-Xchange Ox App Suite

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

OX App Suite through 7.10.5 allows XSS via the class attribute of an element in an HTML e-mail signature.

Affected products

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

Published 2022-03-28. Last modified 2026-06-17.