Pega Platform through 8.4.x is affected by Cross Site Scripting (XSS) via the ConnectionID parameter, as demonstrated by a pyActivity=Data-TRACERSettings.pzStartTracerSession request to a PRAuth URI.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-23957
Reference (s):
- https://jayaramyalla.medium.com/cross-site-scripting-in-pega-cve-2020-23957-16d1c417da5f