Medium severity · published Oct 21, 2020
CVE-2020-27612
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…
4.3
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
through 2.2.28 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27612
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27612
Not Applicable
https://docs.bigbluebutton.org/admin/privacy.html
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