{"id":"CVE-2021-21659","aliases":["GHSA-34j5-c4cv-mmg5"],"url":"https://o3.security/vulnerability/CVE-2021-21659","summary":"XXE vulnerability in Jenkins URLTrigger Plugin","details":"Jenkins URLTrigger Plugin 0.48 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.","published":"2021-05-25T17:15:08.110Z","modified":"2026-07-09T00:12:30.288596Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.plugins:urltrigger","fixedVersion":"0.49"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/05/25/3"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2341"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:12:30.288596Z"}}