CVE-2020-5566: Cybozu Garoon

Medium severity, CVSS 4.3. EPSS: 1.1% chance of exploitation in the next 30 days.

Improper authorization vulnerability in Cybozu Garoon 4.0.0 to 4.10.3 allows remote authenticated attackers to alter the application's data via the applications 'E-mail' and 'Messages'.

Affected products

• Cybozu Garoon: from 4.0.0, up to and including 4.10.3

Published 2020-04-28. Last modified 2026-06-17.