CVE-2011-2937: Roundcube Webmail

Medium severity, CVSS 4.3. EPSS: 2.5% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the UI messages functionality in Roundcube Webmail before 0.5.4 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter to the default URI.

Affected products

• Roundcube Webmail: up to and including 0.5.3; version 0.1 only; version 0.1.1 only; version 0.2 only; version 0.2.1 only; version 0.3 only; …

Published 2011-09-21. Last modified 2026-06-16.