{"id":"CVE-2020-7747","aliases":["EUVD-2021-1081","GHSA-gmch-cm2p-9qw9"],"status":"published","title":"Cross-site Scripting (XSS)","description":"This affects all versions of package lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0086,"percentile":0.58825,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2020-10-20T10:25:15Z","modified":"2026-06-17T03:25:22Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"lightning-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.3.0"}]}]},{"source":"osv","ecosystem":"npm","package":"lightning-server","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.3.0"}]}]}],"products":[{"vendor":"lightning-viz","product":"lightning"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-LIGHTNINGSERVER-1019381","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://github.com/lightning-viz/lightning/blob/master/app/controllers/session.js%23L230","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7747","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gmch-cm2p-9qw9"},{"url":"https://github.com/lightning-viz/lightning/blob/master/app/controllers/session.js","tags":["Exploit","Vendor Advisory"]}],"sources":{"cve":[{"id":"CVE-2020-7747","title":"Cross-site Scripting (XSS)","description":"This affects all versions of package lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","status":"published","published":"2020-10-20T10:25:15.016Z","modified":"2024-09-16T16:42:28.588Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:58.331892Z"}],"euvd":[{"id":"EUVD-2021-1081","description":"This affects all versions of package lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","status":"published","published":"2020-10-20T10:25:15Z","modified":"2024-09-16T16:42:28Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:55:49.07001Z"}],"ghsa":[{"id":"GHSA-gmch-cm2p-9qw9","title":"Cross-site Scripting in lightning-server","description":"This affects all versions of package lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","status":"published","published":"2021-05-10T18:39:15Z","modified":"2023-02-01T05:05:32Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:34.917834Z"}],"nvd":[{"id":"CVE-2020-7747","description":"This affects all versions of package lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","status":"published","published":"2020-10-20T11:15:12.487Z","modified":"2026-06-17T03:25:22.433Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:20.704992Z"}],"osv":[{"id":"GHSA-gmch-cm2p-9qw9","title":"Cross-site Scripting in lightning-server","description":"This affects all versions of package lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","status":"published","published":"2021-05-10T18:39:15Z","modified":"2026-03-14T06:57:14.621277Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:47.822182Z"}]}}