{"id":"CVE-2020-28953","aliases":["EUVD-2020-21339","GHSA-5j2f-fr5v-53mc"],"status":"published","title":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","description":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.007,"percentile":0.53675,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2020-11-19T21:15:05Z","modified":"2026-10-20T10:53:12Z","products":[{"vendor":"bigbluebutton","product":"bigbluebutton"}],"references":[{"url":"https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.28...v2.2.29","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://github.com/bigbluebutton/bigbluebutton/commit/d2cb02b3bd670265c6b1ba003f87fc261e0ac3e1","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28953"},{"url":"https://github.com/advisories/GHSA-5j2f-fr5v-53mc"}],"sources":{"cve":[{"id":"CVE-2020-28953","description":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","status":"published","published":"2020-11-19T21:15:05Z","modified":"2024-08-04T16:48:00.604Z","updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2020-21339","description":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","status":"published","published":"2020-11-19T21:15:05Z","modified":"2024-08-04T16:48:00Z","updated_at":"2026-11-03T03:07:08.475588Z"}],"ghsa":[{"id":"GHSA-5j2f-fr5v-53mc","title":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","description":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","status":"published","published":"2022-05-24T17:34:40Z","modified":"2023-01-29T05:05:24Z","cwes":["CWE-732"],"updated_at":"2026-11-02T14:45:46.865713Z"}],"nvd":[{"id":"CVE-2020-28953","description":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","status":"published","published":"2020-11-19T22:15:13.677Z","modified":"2026-06-17T03:10:54.35Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:25.394006Z"}],"osv":[{"id":"CVE-2020-28953","description":"In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.","status":"published","published":"2020-11-19T22:15:13.677Z","modified":"2026-10-20T10:53:12.155354145Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:16.612899Z"}]}}