{"id":"CVE-2026-42523","aliases":["GHSA-w22p-4x9f-486v"],"url":"https://o3.security/vulnerability/CVE-2026-42523","summary":"Jenkins GitHub Plugin has an XSS vulnerability","details":"In Jenkins GitHub Plugin versions 1.46.0 and earlier, the JavaScript that validates the \"GitHub hook trigger for GITScm polling\" feature improperly processes the current job URL.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by non-anonymous attackers with Overall/Read permission.\n\nGitHub Plugin 1.46.0.1 no longer processes the current job URL as part of JavaScript implementing validation of the feature \"GitHub hook trigger for GITScm polling\".","published":"2026-04-29T14:16:19.360Z","modified":"2026-10-28T02:30:24.935703463Z","cvss":{"score":9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"},"epss":{"score":0.00281,"percentile":0.204,"asOf":"2026-08-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.coravy.hudson.plugins.github:github","fixedVersion":"1.46.0.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3704"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42523"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/github-plugin"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:24.935703463Z"}}