{"id":"CVE-2023-43798","summary":"BigBlueButton Blind SSRF When Uploading Presentation (mitigation bypass)","details":"BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.","modified":"2026-08-12T03:51:09.348562832Z","published":"2023-10-30T22:24:59.109Z","related":["GHSA-3q22-hph2-cff7","GHSA-h98v-2h8w-99c4"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43798.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-918"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43798.json"},{"type":"ADVISORY","url":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7"},{"type":"ADVISORY","url":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43798"},{"type":"FIX","url":"https://github.com/bigbluebutton/bigbluebutton/pull/18494"},{"type":"FIX","url":"https://github.com/bigbluebutton/bigbluebutton/pull/18580"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"fixed":"64a74527a0cacba3eea16197643ebbadc908ada7"}],"database_specific":{"cpe":"cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.6.12"}],"source":"CPE_RANGE"}}],"versions":["v2.6.11","v2.6.10","v2.6.9","v2.6.8","v2.6.7","v2.6.6","v2.6.5","v2.6.4","v2.6.3","v2.6.2","v2.6.1","v2.6.0","v2.6.0-rc.9","v2.6.0-rc.7","v2.6.0-rc.6","v2.6.0-rc.4","v2.6.0-rc.5","v2.6.0-rc.1","v2.6.0-rc.3","v2.6.0-rc.2","v2.6.0-beta.7","v2.6.0-beta.6","v2.6.0-beta.5","v2.6.0-beta.4","v2.6.0-beta.3","v2.6.0-beta.2","v2.6.0-beta.1","v2.6.0-alpha.4","v2.6.0-alpha.3","v2.6.0-alpha.2","v2.6.0-alpha.1","v2.4-beta-4","v2.4-beta-3","v2.4-beta-2","v2.4-beta-1","v2.4-alpha-1","v2.3.1","v2.3.0","v2.3-rc-2","v2.3-rc-1","v2.3-beta-5","v2.3-beta-4","v2.3-beta-3","v2.3-beta-2","v2.3-beta-1","v2.3-alpha-8","v2.3-alpha-7","v2.3-alpha-6","v2.3-alpha-5","v2.3-alpha-4","v2.3-alpha-3","v2.3-alpha-2","v2.3-alpha-1","2.2-rc-3","2.2-rc-2","2.2-rc-1","2.2-beta-23","2.2-beta-22","2.2-beta-21","2.2-beta-20","2.2-beta-19","2.2-beta-18","2.2-beta-17","2.2-beta-16","2.2-beta-15","2.2-beta-14","2.2-beta-12","2.2-beta-11","2.2-beta-10","2.2-beta-9","2.2-beta-8","2.2-beta-7","2.2-beta-6","2.2-beta-5","2.2-beta-4","2.2-beta-3","2.2-beta-2","dcs-2-a","v0.9.0-beta","v0.8","v0.8rc2","v0.8b4.0","v0.8b4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-43798.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}