{"id":"CVE-2021-21630","aliases":["GHSA-wx66-pm7r-2q82"],"url":"https://o3.security/vulnerability/CVE-2021-21630","summary":"Stored XSS vulnerability in Jenkins Extra Columns Plugin","details":"Jenkins Extra Columns Plugin 1.22 and earlier does not escape parameter values in the build parameters column.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission. Additionally, a view containing such a job needs to be configured with the build parameters column, or the attacker also needs View/Configure permission.\n\nJenkins Extra Columns Plugin 1.23 escapes parameter values in the build parameters column.","published":"2021-03-30T12:16:10.407Z","modified":"2026-07-09T05:13:39.068778Z","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":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.plugins:extra-columns","fixedVersion":"1.23"}],"fix":{"url":"https://github.com/jenkinsci/extra-columns-plugin/commit/929887caba35eb78a55fee31d08fb950200a92ef","label":"jenkinsci/extra-columns-plugin@929887c"},"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/03/30/1"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2222"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21630"},{"type":"WEB","url":"https://github.com/jenkinsci/extra-columns-plugin/commit/929887caba35eb78a55fee31d08fb950200a92ef"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/extra-columns-plugin"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T05:13:39.068778Z"}}