{"id":"CVE-2021-21618","aliases":["GHSA-hg2w-3c4j-jjwm"],"url":"https://o3.security/vulnerability/CVE-2021-21618","summary":"Stored XSS vulnerability in Jenkins Repository Connector Plugin","details":"Jenkins Repository Connector Plugin 2.0.2 and earlier does not escape parameter names and descriptions for past builds.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.\n\nJenkins Repository Connector Plugin 2.0.3 escapes parameter names and descriptions when creating new parameters.","published":"2021-02-24T16:15:14.897Z","modified":"2026-07-09T00:22:30.470539Z","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:repository-connector","fixedVersion":"2.0.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2183"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21618"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/repository-connector-plugin"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:22:30.470539Z"}}