{"id":"CVE-2020-3920","aliases":["EUVD-2020-25185","GHSA-3c6v-c67v-hx4q"],"status":"published","title":"Unisoon UltraLog Express - Broken Authentication","description":"UltraLog Express device management interface does not properly perform access authentication in some specific pages/functions. Any user can access the privileged page to manage accounts through specific system directory.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00836,"percentile":0.57981,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-306"],"published":"2020-03-27T03:50:25Z","modified":"2026-06-17T03:19:15Z","products":[{"vendor":"unisoon","product":"ultralog express"},{"vendor":"unisoon","product":"ultralog_express_firmware"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-3452-937d6-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3920"},{"url":"https://github.com/advisories/GHSA-3c6v-c67v-hx4q"}],"sources":{"cve":[{"id":"CVE-2020-3920","title":"Unisoon UltraLog Express - Broken Authentication","description":"UltraLog Express device management interface does not properly perform access authentication in some specific pages/functions. Any user can access the privileged page to manage accounts through specific system directory.","status":"published","published":"2020-03-27T03:50:25.735Z","modified":"2024-09-17T02:16:00.93Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:51.923913Z"}],"euvd":[{"id":"EUVD-2020-25185","description":"UltraLog Express device management interface does not properly perform access authentication in some specific pages/functions. Any user can access the privileged page to manage accounts through specific system directory.","status":"published","published":"2020-03-27T03:50:25Z","modified":"2024-09-17T02:16:00Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T00:28:42.412483Z"}],"ghsa":[{"id":"GHSA-3c6v-c67v-hx4q","title":"UltraLog Express device management interface does not properly perform access authentication in...","description":"UltraLog Express device management interface does not properly perform access authentication in some specific pages/functions. Any user can access the privileged page to manage accounts through specific system directory.","status":"published","published":"2022-05-24T17:12:54Z","modified":"2024-05-06T12:30:25Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-287","CWE-306"],"updated_at":"2026-11-02T14:57:19.595262Z"}],"nvd":[{"id":"CVE-2020-3920","description":"UltraLog Express device management interface does not properly perform access authentication in some specific pages/functions. Any user can access the privileged page to manage accounts through specific system directory.","status":"published","published":"2020-03-27T04:15:10.77Z","modified":"2026-06-17T03:19:15.84Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:05:56.580228Z"}]}}