CVE-2025-61602
09.10.2025, 21:15
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.Enginsight
| Vendor | Product | Version |
|---|---|---|
| bigbluebutton | bigbluebutton | 𝑥 < 3.0.13 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration