{"id":"CVE-2023-5543","aliases":["BIT-moodle-2023-5543","EUVD-2023-57851","GHSA-p657-7739-2grh","UBUNTU-CVE-2023-5543"],"status":"published","title":"Moodle: duplicating a bigbluebutton activity assigns the same meeting id","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","severity":{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00251,"percentile":0.16535,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284"],"published":"2023-11-09T21:35:38Z","modified":"2026-10-28T02:30:52Z","fixes":[{"ecosystem":"Bitnami","package":"moodle","fixed_in":["4.0.11","4.1.6","4.2.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"moodle","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.0.11"},{"introduced":"4.1.0"},{"fixed":"4.1.6"},{"introduced":"4.2.0"},{"fixed":"4.2.3"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.9+dfsg-1","2.7.10+dfsg-1","2.7.11+dfsg-1","2.7.11+dfsg-2","2.7.12+dfsg-1","3.0.3+dfsg-0ubuntu1","3.0.3+dfsg-0ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3+dfsg-0ubuntu1","3.0.3+dfsg-0ubuntu1+esm1"]}],"products":[{"vendor":"fedoraproject","product":"extra_packages_for_enterprise_linux"},{"vendor":"fedoraproject","product":"fedora"},{"vendor":"moodle","product":"moodle"}],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-77795","tags":["x_transferred","Patch","fix","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2243442","tags":["issue-tracking","x_refsource_REDHAT","x_transferred","Issue Tracking","Patch","Third Party Advisory","advisory","report"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=451584","tags":["x_transferred","Patch","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5543","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-p657-7739-2grh"},{"url":"https://git.moodle.org","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5543.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-5543","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-5543","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-5543","title":"Moodle: duplicating a bigbluebutton activity assigns the same meeting id","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2023-11-09T21:35:38.116Z","modified":"2024-08-02T07:59:44.863Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:35:16.771348Z"}],"euvd":[{"id":"EUVD-2023-57851","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2023-11-09T21:35:38Z","modified":"2024-08-02T07:59:44Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-03T03:50:11.629738Z"}],"ghsa":[{"id":"GHSA-p657-7739-2grh","title":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of...","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2023-11-10T00:30:27Z","modified":"2023-11-10T00:30:27Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:54:56.630179Z"}],"nvd":[{"id":"CVE-2023-5543","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2023-11-09T22:15:11Z","modified":"2026-06-17T06:48:48.183Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:08:46.647045Z"}],"osv":[{"id":"CVE-2023-5543","title":"Moodle: duplicating a bigbluebutton activity assigns the same meeting id","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2023-11-09T21:35:38.116Z","modified":"2026-10-28T02:30:52.773939272Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:44:36.851042Z"},{"id":"UBUNTU-CVE-2023-5543","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2023-11-09T22:15:00Z","modified":"2026-09-23T18:46:00.234686989Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"},{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T16:54:41.555387Z"},{"id":"BIT-moodle-2023-5543","title":"Moodle: duplicating a bigbluebutton activity assigns the same meeting id","description":"When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.","status":"published","published":"2024-03-06T10:57:59.204Z","modified":"2026-09-08T08:48:15.038310947Z","updated_at":"2026-11-02T15:28:33.469426Z"}]}}