{"id":"CVE-2024-38518","summary":"bbb-web API additional parameters considered","details":"BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be \"role=moderator\", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.","aliases":["GHSA-4m48-49h7-f3c4"],"modified":"2026-04-10T05:14:29.049686Z","published":"2024-06-28T20:25:40.743Z","database_specific":{"cwe_ids":["CWE-284"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38518.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38518.json"},{"type":"ADVISORY","url":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38518"},{"type":"FIX","url":"https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1"},{"type":"FIX","url":"https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72"},{"type":"FIX","url":"https://github.com/bigbluebutton/bigbluebutton/pull/20279"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"fixed":"a9d436accdcd26ea66bed9f391488ac128cd62d1"}]},{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"fixed":"ea6e9461dceae8fa593543d8c686f77bb8677e72"}]},{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"fixed":"a9d436accdcd26ea66bed9f391488ac128cd62d1"}]},{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"fixed":"ea6e9461dceae8fa593543d8c686f77bb8677e72"}]}],"versions":["2.2-beta-10","2.2-beta-11","2.2-beta-12","2.2-beta-14","2.2-beta-15","2.2-beta-16","2.2-beta-17","2.2-beta-18","2.2-beta-19","2.2-beta-2","2.2-beta-20","2.2-beta-21","2.2-beta-22","2.2-beta-23","2.2-beta-3","2.2-beta-4","2.2-beta-5","2.2-beta-6","2.2-beta-7","2.2-beta-8","2.2-beta-9","2.2-rc-1","2.2-rc-2","2.2-rc-3","dcs-2-a","v0.8","v0.8b4","v0.8b4.0","v0.8rc2","v0.9.0-beta","v2.3-alpha-1","v2.3-alpha-2","v2.3-alpha-3","v2.3-alpha-4","v2.3-alpha-5","v2.3-alpha-6","v2.3-alpha-7","v2.3-alpha-8","v2.3-beta-1","v2.3-beta-2","v2.3-beta-3","v2.3-beta-4","v2.3-beta-5","v2.3-rc-1","v2.3-rc-2","v2.3.0","v2.3.1","v2.4-alpha-1","v2.4-beta-1","v2.4-beta-2","v2.4-beta-3","v2.4-beta-4","v2.6.0","v2.6.0-alpha.1","v2.6.0-alpha.2","v2.6.0-alpha.3","v2.6.0-alpha.4","v2.6.0-beta.1","v2.6.0-beta.2","v2.6.0-beta.3","v2.6.0-beta.4","v2.6.0-beta.5","v2.6.0-beta.6","v2.6.0-beta.7","v2.6.0-rc.1","v2.6.0-rc.2","v2.6.0-rc.3","v2.6.0-rc.4","v2.6.0-rc.5","v2.6.0-rc.6","v2.6.0-rc.7","v2.6.0-rc.9","v2.6.1","v2.6.10","v2.6.11","v2.6.12","v2.6.14","v2.6.15","v2.6.16","v2.6.17","v2.6.2","v2.6.3","v2.6.4","v2.6.5","v2.6.6","v2.6.7","v2.6.8","v2.6.9","v2.7.0","v2.7.0-alpha.1","v2.7.0-alpha.2","v2.7.0-alpha.3","v2.7.0-beta.1","v2.7.0-beta.2","v2.7.0-beta.3","v2.7.0-rc.1","v2.7.0-rc.2","v2.7.1","v2.7.2","v2.7.3","v2.7.4","v2.7.5","v2.7.6","v2.7.7","v3.0.0-alpha.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38518.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L"}]}