{"id":"CVE-2021-21684","aliases":["GHSA-gghc-g8cj-4vfv"],"url":"https://o3.security/vulnerability/CVE-2021-21684","summary":"Stored XSS vulnerability in Jenkins Git Plugin","details":"Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.","published":"2021-10-06T23:15:06.977Z","modified":"2026-07-09T00:12:31.489484Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.plugins:git","fixedVersion":"4.8.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/10/06/1"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:12:31.489484Z"}}