CVE-2020-18670: Roundcube Webmail

Medium severity, CVSS 5.4. EPSS: 0.9% chance of exploitation in the next 30 days.

Cross Site Scripting (XSS) vulneraibility in Roundcube mail .4.4 via database host and user in /installer/test.php.

Affected products

• Roundcube Webmail: version 1.4.4 only

Published 2021-06-24. Last modified 2026-06-17.