This affects the package vis-timeline before 7.4.4.
An attacker with the ability to control the items of a Timeline element can inject additional script code into the generated application.
github.com/visjs/vis-timeline/commit/a7ca349c7b3b6080efd05776ac77bb27176d4d3f
github.com/visjs/vis-timeline/issues/838
github.com/visjs/vis-timeline/pull/840
nvd.nist.gov/vuln/detail/CVE-2020-28487
snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBVISJS-1063502
snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1063501
snyk.io/vuln/SNYK-JS-VISTIMELINE-1063500