Genesys PureConnect Interaction Web Tools Chat Service (up to at least 26- September- 2019) allows XSS within the Printable Chat History via the participant -> name JSON POST parameter.
https://help.genesys.com/pureconnect/mergedprojects/wh_tr/desktop/pdfs/web_tools_dg.pdf
https://cxsecurity.com/issue/WLB-2022090038
http://packetstormsecurity.com/files/168410/Genesys-PureConnect-Cross-Site-Scripting.html