Cross-site scripting (XSS) vulnerability in Splunk Web in Splunk Enterprise 6.2.x before 6.2.4, 6.1.x before 6.1.8, 6.0.x before 6.0.9, and 5.0.x before 5.0.13 and Splunk Light 6.2.x before 6.2.4 allows remote attackers to inject arbitrary web script or HTML via a header.