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bigbluebutton vulnerabilities and exploits
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6.5
CVSSv3
CVE-2020-27607
In BigBlueButton prior to 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client. It does not directly configure the client to stop sending audio data to the server, and thus a modified server could store t...
Bigbluebutton Bigbluebutton
6.1
CVSSv3
CVE-2020-27608
In BigBlueButton prior to 2.2.28 (or earlier), uploaded presentations are sent to clients without a Content-Type header, which allows XSS, as demonstrated by a .png file extension for an HTML document.
Bigbluebutton Bigbluebutton
5.3
CVSSv3
CVE-2020-27609
BigBlueButton up to and including 2.2.28 records a video meeting despite the deactivation of video recording in the user interface. This may result in data storage beyond what is authorized for a specific meeting topic or participant.
Bigbluebutton Bigbluebutton
7.5
CVSSv3
CVE-2020-27610
The installation procedure in BigBlueButton prior to 2.2.28 (or earlier) exposes certain network services to external interfaces, and does not automatically set up a firewall configuration to block external access.
Bigbluebutton Bigbluebutton
7.3
CVSSv3
CVE-2020-27611
BigBlueButton up to and including 2.2.28 uses STUN/TURN resources from a third party, which may represent an unintended endpoint.
Bigbluebutton Bigbluebutton
4.3
CVSSv3
CVE-2020-27612
Greenlight in BigBlueButton up to and including 2.2.28 places usernames in room URLs, which may represent an unintended information leak to users in a room, or an information leak to outsiders if any user publishes a screenshot of a browser window.
Bigbluebutton Bigbluebutton
8.4
CVSSv3
CVE-2020-27613
The installation procedure in BigBlueButton prior to 2.2.28 (or earlier) uses ClueCon as the FreeSWITCH password, which allows local users to achieve unintended FreeSWITCH access.
Bigbluebutton Bigbluebutton
6.5
CVSSv3
CVE-2020-25820
BigBlueButton prior to 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.
Bigbluebutton Bigbluebutton
8.8
CVSSv3
CVE-2020-26163
BigBlueButton Greenlight prior to 2.5.6 allows HTTP header (Host and Origin) attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link.
Bigbluebutton Greenlight
9.8
CVSSv3
CVE-2020-12443
BigBlueButton prior to 2.2.6 allows remote malicious users to read arbitrary files because the presfilename (lowercase) value can be a .pdf filename while the presFilename (mixed case) value has a ../ sequence. This can be leveraged for privilege escalation via a directory traver...
Bigbluebutton Bigbluebutton
1 Github repository
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2020-4463
CVE-2024-3400
deserialization
CVE-2024-21788
CVE-2023-42433
CVE-2024-21841
CVE-2024-22095
local file inclusion
memory leak
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