An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. include/rcmailoutputhtml.php allows XSS via the username template object.
{ "severity": "Medium", "cpes": [ "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*" ] }