{"id":"CVE-2024-12838","aliases":["EUVD-2024-51139","GHSA-hcj7-gr87-5x37"],"status":"published","title":"Changing Information Technology CGFIDO - Authentication Bypass","description":"The passwordless login mechanism in CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability, allowing remote attackers with regular privileges to send a crafted request to switch to the identity of any user, including administrators.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00762,"percentile":0.55796,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-302"],"published":"2024-12-31T01:24:48Z","modified":"2026-06-17T07:00:36Z","products":[{"vendor":"changing information technology","product":"cgfido"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-8332-2100f-1.html","tags":["third-party-advisory"]},{"url":"https://www.twcert.org.tw/en/cp-139-8333-32cf8-2.html","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-12838"},{"url":"https://github.com/advisories/GHSA-hcj7-gr87-5x37"}],"sources":{"cve":[{"id":"CVE-2024-12838","title":"Changing Information Technology CGFIDO - Authentication Bypass","description":"The passwordless login mechanism in CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability, allowing remote attackers with regular privileges to send a crafted request to switch to the identity of any user, including administrators.","status":"published","published":"2024-12-31T01:24:48.68Z","modified":"2024-12-31T15:56:46.585Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-302"],"updated_at":"2026-11-02T14:34:12.287582Z"}],"euvd":[{"id":"EUVD-2024-51139","description":"The passwordless login mechanism in CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability, allowing remote attackers with regular privileges to send a crafted request to switch to the identity of any user, including administrators.","status":"published","published":"2024-12-31T01:24:48Z","modified":"2024-12-31T15:56:46Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:31.712293Z"}],"ghsa":[{"id":"GHSA-hcj7-gr87-5x37","title":"The passwordless login mechanism in CGFIDO from Changing Information Technology has an...","description":"The passwordless login mechanism in CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability, allowing remote attackers with regular privileges to send a crafted request to switch to the identity of any user, including administrators.","status":"published","published":"2024-12-31T03:30:33Z","modified":"2024-12-31T03:30:39Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-302"],"updated_at":"2026-11-02T14:59:17.598219Z"}],"nvd":[{"id":"CVE-2024-12838","description":"The passwordless login mechanism in CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability, allowing remote attackers with regular privileges to send a crafted request to switch to the identity of any user, including administrators.","status":"published","published":"2024-12-31T02:15:05.877Z","modified":"2026-06-17T07:00:36.643Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-302"],"updated_at":"2026-11-02T14:10:41.489236Z"}]}}