{"id":"CVE-2020-2207","aliases":["EUVD-2022-1998","GHSA-2j4h-cjgh-659v"],"status":"published","title":"Reflected XSS vulnerability in Jenkins VncViewer Plugin","description":"Jenkins VncViewer Plugin 1.7 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00871,"percentile":0.59096,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2020-07-02T14:55:35Z","modified":"2026-10-24T10:31:03Z","fixes":[{"ecosystem":"Maven","package":"org.jenkins-ci.plugins:vncviewer","fixed_in":["1.8"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.jenkins-ci.plugins:vncviewer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.7"},{"fixed":"1.8"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.jenkins-ci.plugins:vncviewer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8"}]}],"versions":["1.0","1.1","1.2","1.3","1.5","1.7"]}],"products":[{"vendor":"jenkins","product":"vncviewer"},{"vendor":"jenkins project","product":"jenkins vncviewer plugin"}],"references":[{"url":"https://jenkins.io/security/advisory/2020-07-02/#SECURITY-1776","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2020/07/02/7","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2207","tags":["advisory"]},{"url":"https://github.com/jenkinsci/vncviewer-plugin/commit/99b2aa3ed0857ef35de9a3aca0b0c53add3b392d","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2j4h-cjgh-659v"},{"url":"https://github.com/jenkinsci/vncviewer-plugin","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-2207","description":"Jenkins VncViewer Plugin 1.7 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.","status":"published","published":"2020-07-02T14:55:35Z","modified":"2024-08-04T07:01:41.184Z","updated_at":"2026-11-02T14:35:51.206854Z"}],"euvd":[{"id":"EUVD-2022-1998","description":"Jenkins VncViewer Plugin 1.7 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.","status":"published","published":"2020-07-02T14:55:35Z","modified":"2024-08-04T07:01:41Z","updated_at":"2026-11-03T03:08:10.371372Z"}],"ghsa":[{"id":"GHSA-2j4h-cjgh-659v","title":"Reflected XSS vulnerability in Jenkins VncViewer Plugin","description":"VncViewer Plugin 1.7 and earlier does not escape a parameter value in the `checkVncServ` form validation endpoint output.\n\nThis results in a reflected cross-site scripting (XSS) vulnerability.\n\nVncViewer Plugin 1.8 escapes the parameter value in the output.","status":"published","published":"2022-05-24T17:22:19Z","modified":"2023-12-14T09:32:41Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:26.012325Z"}],"nvd":[{"id":"CVE-2020-2207","description":"Jenkins VncViewer Plugin 1.7 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.","status":"published","published":"2020-07-02T15:15:17.677Z","modified":"2026-06-17T03:11:59.57Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:08.145904Z"}],"osv":[{"id":"CVE-2020-2207","description":"Jenkins VncViewer Plugin 1.7 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.","status":"published","published":"2020-07-02T15:15:17.677Z","modified":"2026-10-24T10:31:03.524588157Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:15.534837Z"},{"id":"GHSA-2j4h-cjgh-659v","title":"Reflected XSS vulnerability in Jenkins VncViewer Plugin","description":"VncViewer Plugin 1.7 and earlier does not escape a parameter value in the `checkVncServ` form validation endpoint output.\n\nThis results in a reflected cross-site scripting (XSS) vulnerability.\n\nVncViewer Plugin 1.8 escapes the parameter value in the output.","status":"published","published":"2022-05-24T17:22:19Z","modified":"2024-02-16T08:18:00.525629Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:34.338541Z"}]}}