{"id":"CVE-2018-20676","aliases":["GHSA-3mgp-fx93-9xv5"],"url":"https://o3.security/vulnerability/CVE-2018-20676","summary":"XSS vulnerability that affects bootstrap","details":"In Bootstrap before 3.4.0, XSS is possible in the tooltip data-viewport attribute.","published":"2019-01-09T05:29:01.287Z","modified":"2026-07-08T19:45:21.770478Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.webjars:bootstrap","fixedVersion":"3.4.0"},{"ecosystem":"npm","name":"bootstrap","fixedVersion":"3.4.0"},{"ecosystem":"npm","name":"bootstrap-sass","fixedVersion":"3.4.0"},{"ecosystem":"NuGet","name":"bootstrap","fixedVersion":"3.4.0"},{"ecosystem":"Packagist","name":"twbs/bootstrap","fixedVersion":"3.4.0"},{"ecosystem":"RubyGems","name":"bootstrap","fixedVersion":"3.4.0"},{"ecosystem":"RubyGems","name":"bootstrap-sass","fixedVersion":"3.4.0"}],"fix":{"url":"https://github.com/twbs/bootstrap/pull/27047","label":"twbs/bootstrap#27047"},"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E"},{"type":"WEB","url":"https://www.tenable.com/security/tns-2021-14"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHBA-2019:1076"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHBA-2019:1570"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:1456"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3023"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0132"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0133"},{"type":"ADVISORY","url":"https://blog.getbootstrap.com/2018/12/13/bootstrap-3-4-0/"},{"type":"ADVISORY","url":"https://github.com/twbs/bootstrap/issues/27915#issuecomment-452196628"},{"type":"REPORT","url":"https://github.com/twbs/bootstrap/issues/27044"},{"type":"REPORT","url":"https://github.com/twbs/bootstrap/issues/27915#issuecomment-452140906"},{"type":"FIX","url":"https://github.com/twbs/bootstrap/pull/27047"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T19:45:21.770478Z"}}