{"id":"CVE-2023-43495","aliases":["BIT-jenkins-2023-43495","GHSA-5j46-5hwq-gwh7"],"url":"https://o3.security/vulnerability/CVE-2023-43495","summary":"Jenkins Cross-site Scripting vulnerability","details":"`ExpandableDetailsNote` allows annotating build log content with additional information that can be revealed when interacted with.\n\nJenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the `caption` constructor parameter of `ExpandableDetailsNote`.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide `caption` parameter values.\n\nAs of publication, the related API is not used within Jenkins (core), and the Jenkins security team is not aware of any affected plugins.\nJenkins 2.424, LTS 2.414.2 escapes `caption` constructor parameter values.","published":"2023-09-20T17:15:11.747Z","modified":"2026-07-09T12:19:57.194539Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.00883,"percentile":0.56043,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.414.2"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.424"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2023/09/20/5"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3245"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43495"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T12:19:57.194539Z"}}