Cross-site scripting (XSS) vulnerability in the backend in Open-Xchange (OX) AppSuite 7.2.x before 7.2.2-rev27 and 7.4.x before 7.4.0-rev20 allows remote attackers to inject arbitrary web script or HTML via the body of an email. NOTE: this vulnerability was SPLIT from CVE-2013-6242 because it affects different sets of versions.