CVE-2025-61602 (GCVE-0-2025-61602)
Vulnerability from cvelistv5
Published
2025-10-09 20:40
Modified
2025-10-10 14:30
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-703 - Improper Check or Handling of Exceptional Conditions
Summary
BigBlueButton is an open-source virtual classroom. A denial-of-service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to crash the chat functionality for all participants in a meeting by sending a malformed `reactionEmojiId` in the GraphQL mutation `chatSendMessageReaction`. Version 3.0.13 contains a patch. No known workarounds are available.
References
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/23651
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-45j2-m26c-3pcm
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-45j2-m26c-3pcm
Impacted products
Vendor Product Version
bigbluebutton bigbluebutton Version: < 3.0.13
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