{"id":"CVE-2020-2255","aliases":["GHSA-vc7g-4269-f7hw"],"url":"https://o3.security/vulnerability/CVE-2020-2255","summary":"Missing permission check in Blue Ocean Plugin","details":"### Updated 2020-09-16\nThis entry previously misidentified the problematic behavior. The HTTP request itself is legitimate, but only authorized users should be able to perform it.\n\n### Original Description\nBlue Ocean Plugin 1.23.2 and earlier does not perform permission checks in several HTTP endpoints implementing connection tests.\n\nThis allows attackers with Overall/Read permission to connect to an attacker-specified URL.\n\nBlue Ocean Plugin 1.23.3 requires Item/Create permission to perform these connection tests.","published":"2020-09-16T14:15:13.237Z","modified":"2026-10-24T10:30:23.177727274Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.jenkins.blueocean:blueocean","fixedVersion":"1.23.3"}],"fix":{"url":"https://github.com/jenkinsci/blueocean-plugin/commit/659a66aff0d0ad693eab9d2807985d591e102aab","label":"jenkinsci/blueocean-plugin@659a66a"},"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/09/16/3"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1961"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2255"},{"type":"WEB","url":"https://github.com/jenkinsci/blueocean-plugin/commit/659a66aff0d0ad693eab9d2807985d591e102aab"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:23.177727274Z"}}