Medium severity · published Nov 19, 2020
CVE-2020-28953
In BigBlueButton before 2.2.29, a user can vote more than once in a single poll
4.3
CVSS
0.7%
EPSS
No
On KEV
Description
In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
before 2.2.29 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-28953
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-28953
Patch
https://github.com/bigbluebutton/bigbluebutton/commit/d2cb02b3bd670265c6b1ba003f87fc261e0ac3e1
Release Notes
https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.28...v2.2.29
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