In Bootstrap before 4.1.2, XSS is possible in the data-container property of tooltip.
https://www.tenable.com/security/tns-2021-14
https://www.oracle.com/security-alerts/cpuApr2021.html
https://seclists.org/bugtraq/2019/May/18
https://github.com/twbs/bootstrap/pull/26630
https://github.com/twbs/bootstrap/issues/26628
https://github.com/twbs/bootstrap/issues/26423
https://blog.getbootstrap.com/2018/07/12/bootstrap-4-1-2/
http://seclists.org/fulldisclosure/2019/May/13
http://seclists.org/fulldisclosure/2019/May/11
http://seclists.org/fulldisclosure/2019/May/10
http://packetstormsecurity.com/files/156743/OctoberCMS-Insecure-Dependencies.html