CVE-2021-20628: Cybozu Office

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Cross-site scripting vulnerability in Address Book of Cybozu Office 10.0.0 to 10.8.4 allows remote attackers to inject an arbitrary script via unspecified vectors. Note that this vulnerability occurs only when using Mozilla Firefox.

Affected products

• Cybozu Office: from 10.0.0, up to and including 10.8.4

Published 2021-03-18. Last modified 2026-06-17.