There is a Cross Site Scripting issue in Esri ArcGIS Pro versions 3.6.0 and earlier. A local attacker could supply malicious strings into ArcGIS Pro which may execute when a specific dialog is opened. This issue is fixed in ArcGIS Pro 3.6.1.
https://www.esri.com/arcgis-blog/products/arcgis-pro/administration/arcgis-pro-3-6-1-patch