Vulnerabilities > Bigbluebutton

DATE CVE VULNERABILITY TITLE RISK
2020-10-21 CVE-2020-27612 Information Exposure vulnerability in Bigbluebutton
Greenlight in BigBlueButton through 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.
network
low complexity
bigbluebutton CWE-200
4.0
2020-10-21 CVE-2020-27611 Use of a Broken or Risky Cryptographic Algorithm vulnerability in Bigbluebutton
BigBlueButton through 2.2.28 uses STUN/TURN resources from a third party, which may represent an unintended endpoint.
network
low complexity
bigbluebutton CWE-327
7.5
2020-10-21 CVE-2020-27610 Information Exposure vulnerability in Bigbluebutton
The installation procedure in BigBlueButton before 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.
network
low complexity
bigbluebutton CWE-200
5.0
2020-10-21 CVE-2020-27609 Incorrect Authorization vulnerability in Bigbluebutton
BigBlueButton through 2.2.28 records a video meeting despite the deactivation of video recording in the user interface.
network
low complexity
bigbluebutton CWE-863
5.0
2020-10-21 CVE-2020-27608 Cross-site Scripting vulnerability in Bigbluebutton
In BigBlueButton before 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.
4.3
2020-10-21 CVE-2020-27607 Unspecified vulnerability in Bigbluebutton
In BigBlueButton before 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client.
network
low complexity
bigbluebutton
6.4
2020-10-21 CVE-2020-27606 Unspecified vulnerability in Bigbluebutton
BigBlueButton before 2.2.28 (or earlier) does not set the secure flag for the session cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.
network
low complexity
bigbluebutton
5.0
2020-10-21 CVE-2020-27605 Unspecified vulnerability in Bigbluebutton
BigBlueButton through 2.2.28 uses Ghostscript for processing of uploaded EPS documents, and consequently may be subject to attacks related to a "schwache Sandbox."
network
low complexity
bigbluebutton
7.5
2020-10-21 CVE-2020-27604 Improper Encoding or Escaping of Output vulnerability in Bigbluebutton
BigBlueButton before 2.3 does not implement LibreOffice sandboxing.
network
low complexity
bigbluebutton CWE-116
4.0
2020-10-21 CVE-2020-27603 Unspecified vulnerability in Bigbluebutton
BigBlueButton before 2.2.27 has an unsafe JODConverter setting in which LibreOffice document conversions can access external files.
network
low complexity
bigbluebutton
5.0