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.
Metrics
Affected Vendors & Products
References
History
Mon, 20 Oct 2025 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:* |
Fri, 10 Oct 2025 15:15:00 +0000
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| Metrics |
ssvc
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Fri, 10 Oct 2025 11:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Bigbluebutton
Bigbluebutton bigbluebutton |
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| Vendors & Products |
Bigbluebutton
Bigbluebutton bigbluebutton |
Thu, 09 Oct 2025 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId | |
| Weaknesses | CWE-703 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-10-09T20:40:04.658Z
Updated: 2025-10-10T14:30:50.944Z
Reserved: 2025-09-26T16:25:25.151Z
Link: CVE-2025-61602
Updated: 2025-10-10T14:30:42.212Z
Status : Analyzed
Published: 2025-10-09T21:15:39.640
Modified: 2025-10-20T15:36:03.607
Link: CVE-2025-61602
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