In Bootstrap before 4.1.2, XSS is possible in the data-target property of scrollspy.
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/26627
https://github.com/twbs/bootstrap/issues/26423
https://blog.getbootstrap.com/2018/07/12/bootstrap-4-1-2/
https://access.redhat.com/errata/RHSA-2019:1456
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
http://packetstormsecurity.com/files/152787/dotCMS-5.1.1-Vulnerable-Dependencies.html