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BigBlueButton — Vulnerabilities & Security Advisories 32

All 32 CVE vulnerabilities found in BigBlueButton, with AI-generated Chinese analysis, references, and POCs.

Vendor: bigbluebutton

CVE IDTitleCVSSSeverityPublished
CVE-2026-41127 BigBlueButton's missing authorization allows viewer to inject/overwrite captions CWE-639 6.5 Medium2026-04-21
CVE-2026-41126 BigBlueButton has Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL" CWE-601 4.3 Medium2026-04-21
CVE-2026-27736 BigBlueButton has Open Redirect vulnerability in ApiController CWE-601 6.1 Medium2026-02-25
CVE-2026-27467 BigBlueButton: Audio from participants to the server initially unmuted CWE-200 2.0 Low2026-02-21
CVE-2026-27466 BigBlueButton: Exposed ClamAV port enables Denial of Service CWE-668 7.2 High2026-02-21
CVE-2025-61602 BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId CWE-703 7.5 High2025-10-09
CVE-2025-61601 BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation CWE-703 7.5 High2025-10-09
CVE-2025-55200 BigBlueButton vulnerable to Stored XSS via name of user at Shared Notes CWE-79 7.1 High2025-10-09
CVE-2023-7296 BigBlueButton <= 3.0.0-beta.4 - Authenticated (Author+) Stored Cross-Site Scripting CWE-79 6.4 Medium2024-10-16
CVE-2024-39302 Some bbb-record-core files installed with wrong file permission CWE-269 3.7 Low2024-06-28
CVE-2024-38518 bbb-web API additional parameters considered CWE-284 4.6 Medium2024-06-28
CVE-2023-43798 BigBlueButton Blind SSRF When Uploading Presentation (mitigation bypass) CWE-918 5.6 Medium2023-10-30
CVE-2023-43797 BigBlueButton Stored Cross-site Scripting vulnerability at Guest Lobby CWE-79 6.3 Medium2023-10-30
CVE-2023-42804 BigBlueButton Path Traversal – Reading Certain File Extensions CWE-22 3.1 Low2023-10-30
CVE-2023-42803 BigBlueButton Unrestricted File Upload vulnerability CWE-434 5.3 Medium2023-10-30
CVE-2023-39991 WordPress BigBlueButton Plugin <= 3.0.0-beta.4 is vulnerable to Cross Site Scripting (XSS) CWE-79 7.1 High2023-09-04
CVE-2023-33176 Blind SSRF When Uploading Presentation in BigBlueButton CWE-918 4.8 Medium2023-06-26
CVE-2022-23488 BigBlueButton vulnerable to Insertion of Sensitive Information Into Sent Data CWE-201 6.5 Medium2022-12-17
CVE-2022-23490 Improper access control to polling votes CWE-200 4.3 Medium2022-12-16
CVE-2022-41964 BigBlueButton contains Response leaks in anonymous polls CWE-200 5.7 Medium2022-12-16
CVE-2022-41963 BigBlueButton contains Improper Preservation of Permissions for whiteboard CWE-281 2.7 Low2022-12-16
CVE-2022-41962 BigBlueButton contains Incorrect Authorization for setting emoji status CWE-863 2.7 Low2022-12-16
CVE-2022-41961 BigBlueButton subject to Ineffective user bans CWE-346 4.3 Medium2022-12-16
CVE-2022-41960 BigBlueButton contains DoS via failed authToken validation CWE-345 4.3 Medium2022-12-15
CVE-2022-31064 Cross site scripting in username that will trigger by sending chat CWE-79 6.5 Medium2022-06-27
CVE-2022-31065 Cross site scripting vulnerability for private chat in bigbluebutton CWE-79 6.5 Medium2022-06-27
CVE-2022-29235 Limited data exposure for shared external videos in BigBlueButton CWE-200 5.3 Medium2022-06-01
CVE-2022-29236 Improper access control for pencil annotations in BigBlueButton CWE-285 4.3 Medium2022-06-01
CVE-2022-29234 Grace period for lock settings in public/private chats in BigBlueButton CWE-285 4.3 Medium2022-06-01
CVE-2022-29233 Improper access control for breakout rooms in BigBlue Button CWE-285 4.3 Medium2022-06-01

All 32 known CVE vulnerabilities affecting BigBlueButton with full Chinese analysis, references, and POCs where available.