7.5

CVE-2025-61601

Medienbericht
Exploit

BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation

DoS via PollSubmitVote GraphQL mutation leads to BigBlueButton server crash

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 freeze or crash the entire server by abusing the polling feature's `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting — and potentially all meetings on the server — to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available.
Mögliche Gegenmaßnahme
Server: There are no workarounds. We recommend upgrading to a patched version of BigBlueButton.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
BigBlueButtonBigBlueButton Version < 3.0.13
VulnDex Vulnerability Enrichment
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Weitere Schwachstelleninformationen
SystemBigBlueButton
Produkt Server
Version < 3.0.13
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.43% 0.342
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-703 Improper Check or Handling of Exceptional Conditions

The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.

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VulnDex Intel
Media Report
13.10.2025 12:27
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5
Vendor Advisory
Exploit
https://github.com/bigbluebutton/bigbluebutton/pull/23662
Patch
Issue Tracking
https://www.youtube.com/watch?v=BwROSVIYjOY
Exploit
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5
Third Party Advisory