CVE-2015-8793: Roundcube Webmail

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6 and 1.1.x before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter in a mail task to the default URL, a different vulnerability than CVE-2011-2937.

Affected products

• Roundcube Webmail: up to and including 1.0.5; version 1.1.0 only; version 1.1.1 only

Published 2016-01-29. Last modified 2026-06-17.