{"id":"CVE-2026-63237","aliases":["EUVD-2026-50132","GHSA-8j44-5653-q846"],"status":"published","title":"TOTP two-factor authentication bypass vulnerability","description":"A TOTP two-factor authentication bypass vulnerability in\nKoollab LMS allowed an\nattacker to supply a client-controlled seed to generate a matching one-time\npassword and bypass the second authentication factor, potentially enabling\nunauthorised access to administrator accounts.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00176,"percentile":0.0716,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2026-07-29T06:25:52Z","modified":"2026-10-23T23:10:00Z","products":[{"vendor":"an unrestricted scorm file upload vulnerability in koollab lms allowed an authenticated module designer to upload a scorm package containing a php webshell to a publicly accessible directory and execute arbitrary code on the server.","product":"koollab lms"},{"vendor":"three learning","product":"koollab lms"}],"references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63237"},{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094"},{"url":"https://github.com/advisories/GHSA-8j44-5653-q846"}],"sources":{"cve":[{"id":"CVE-2026-63237","title":"TOTP two-factor authentication bypass vulnerability","description":"A TOTP two-factor authentication bypass vulnerability in\nKoollab LMS allowed an\nattacker to supply a client-controlled seed to generate a matching one-time\npassword and bypass the second authentication factor, potentially enabling\nunauthorised access to administrator accounts.","status":"published","published":"2026-07-29T06:25:52.341Z","modified":"2026-07-29T14:29:57.945Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-50132","description":"A TOTP two-factor authentication bypass vulnerability in\nKoollab LMS allowed an\nattacker to supply a client-controlled seed to generate a matching one-time\npassword and bypass the second authentication factor, potentially enabling\nunauthorised access to administrator accounts.","status":"published","published":"2026-07-29T06:25:52Z","modified":"2026-07-29T14:29:57Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:02:30.152277Z"}],"ghsa":[{"id":"GHSA-8j44-5653-q846","title":"A TOTP two-factor authentication bypass vulnerability in\nKoollab LMS allowed an\nattacker to...","description":"A TOTP two-factor authentication bypass vulnerability in\nKoollab LMS allowed an\nattacker to supply a client-controlled seed to generate a matching one-time\npassword and bypass the second authentication factor, potentially enabling\nunauthorised access to administrator accounts.","status":"published","published":"2026-07-29T09:31:27Z","modified":"2026-07-29T15:31:12Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T15:09:54.335538Z"}],"nvd":[{"id":"CVE-2026-63237","description":"A TOTP two-factor authentication bypass vulnerability in\nKoollab LMS allowed an\nattacker to supply a client-controlled seed to generate a matching one-time\npassword and bypass the second authentication factor, potentially enabling\nunauthorised access to administrator accounts.","status":"published","published":"2026-07-29T07:16:43.133Z","modified":"2026-10-23T23:10:00.157Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:12:33.629616Z"}]}}