In Splunk Enterprise versions below 8.1.13, 8.2.10, and 9.0.4, a View allows for Cross-Site Scripting (XSS) in an extensible mark-up language (XML) View through the ‘layoutPanel’ attribute in the ‘module’ tag’.
https://research.splunk.com/application/9ac2bfea-a234-4a18-9d37-6d747e85c2e4