{"id":"CVE-2021-21619","aliases":["EUVD-2022-2338","GHSA-48hr-jg4p-w4p4"],"status":"published","title":"XSS vulnerability in Jenkins Claim Plugin","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0939,"percentile":0.95476,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-02-24T15:05:29Z","modified":"2026-10-24T10:30:34Z","fixes":[{"ecosystem":"Maven","package":"org.jenkins-ci.plugins:claim","fixed_in":["2.18.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.jenkins-ci.plugins:claim","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.18.1"},{"fixed":"2.18.2"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.jenkins-ci.plugins:claim","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.18.2"}]}],"versions":["2.0","2.1","2.10","2.11","2.12","2.13.1","2.14","2.14.1","2.15","2.16","2.17","2.18","2.18.1","2.2","2.3","2.5","2.6","2.7","2.8","2.9"]}],"products":[{"vendor":"jenkins","product":"claim"},{"vendor":"jenkins project","product":"jenkins claim plugin"}],"references":[{"url":"https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%281%29","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/02/24/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21619","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20(1)","tags":["web"]},{"url":"https://github.com/advisories/GHSA-48hr-jg4p-w4p4"},{"url":"https://github.com/jenkinsci/claim-plugin","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-21619","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.","status":"published","published":"2021-02-24T15:05:29Z","modified":"2024-08-03T18:16:23.683Z","updated_at":"2026-11-02T14:33:00.137099Z"}],"euvd":[{"id":"EUVD-2022-2338","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.","status":"published","published":"2021-02-24T15:05:29Z","modified":"2024-08-03T18:16:23Z","updated_at":"2026-11-03T03:25:05.745586Z"}],"ghsa":[{"id":"GHSA-48hr-jg4p-w4p4","title":"XSS vulnerability in Jenkins Claim Plugin","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name shown in claims.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.\n\nEveryone with a Jenkins account can change their own display name.\\n\\nClaim Plugin 2.18.2 escapes the user display name shown in claims.","status":"published","published":"2022-05-24T17:43:01Z","modified":"2023-10-27T13:39:47Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:10.053831Z"}],"nvd":[{"id":"CVE-2021-21619","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.","status":"published","published":"2021-02-24T16:15:14.983Z","modified":"2026-06-17T03:35:53.027Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:50.031227Z"}],"osv":[{"id":"CVE-2021-21619","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.","status":"published","published":"2021-02-24T16:15:14.983Z","modified":"2026-10-24T10:30:34.014678603Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"GHSA-48hr-jg4p-w4p4","title":"XSS vulnerability in Jenkins Claim Plugin","description":"Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name shown in claims.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.\n\nEveryone with a Jenkins account can change their own display name.\\n\\nClaim Plugin 2.18.2 escapes the user display name shown in claims.","status":"published","published":"2022-05-24T17:43:01Z","modified":"2024-02-16T08:13:27.631008Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:36.782754Z"}]}}