Prototype 1.6.0.1 allows remote authenticated users to forge ticket creation (on behalf of other user accounts) via a modified email ID field.
https://github.com/prototypejs/prototype/blob/master/CHANGELOG
https://medium.com/@vbharad/improper-access-control-vulnerability-in-prototype-1-6-0-1-framework-379cc3a05079
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7993