There is XSS in SilverStripe CMS before 3.4.4 and 3.5.x before 3.5.2. The attack vector is a page name. An example payload is a crafted JavaScript event handler within a malformed SVG element.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-5197.json"