{"id":"CVE-2020-6804","aliases":["EUVD-2020-27950","GHSA-wq9f-h6v9-87rm"],"status":"published","title":"XSS in Mozilla WebThings Gateway","description":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user's authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00749,"percentile":0.55196,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2020-02-28T22:38:38Z","modified":"2026-10-20T10:53:37Z","products":[{"vendor":"mozilla","product":"webthings gateway"},{"vendor":"mozilla","product":"webthings_gateway"}],"references":[{"url":"https://github.com/mozilla-iot/gateway/pull/2446","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-6804"},{"url":"https://github.com/advisories/GHSA-wq9f-h6v9-87rm"}],"sources":{"cve":[{"id":"CVE-2020-6804","title":"XSS in Mozilla WebThings Gateway","description":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user's authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.","status":"published","published":"2020-02-28T22:38:38Z","modified":"2024-08-04T09:11:05.124Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:52.592504Z"}],"euvd":[{"id":"EUVD-2020-27950","description":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user's authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.","status":"published","published":"2020-02-28T22:38:38Z","modified":"2024-08-04T09:11:05Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:08:01.566283Z"}],"ghsa":[{"id":"GHSA-wq9f-h6v9-87rm","title":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a...","description":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user\u0026#39;s authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.","status":"published","published":"2022-05-24T17:09:57Z","modified":"2023-01-29T05:01:38Z","updated_at":"2026-11-02T14:44:52.661438Z"}],"nvd":[{"id":"CVE-2020-6804","description":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user's authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.","status":"published","published":"2020-02-28T23:15:11.543Z","modified":"2026-06-17T03:23:50.233Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"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":"2026-11-02T14:05:54.796125Z"}],"osv":[{"id":"CVE-2020-6804","description":"A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user's authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.","status":"published","published":"2020-02-28T23:15:11.543Z","modified":"2026-10-20T10:53:37.530234723Z","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":"2026-11-02T15:44:17.34531Z"}]}}