Medium severity · published Apr 23, 2020
CVE-2020-12113
BigBlueButton before 2.2.4 allows XSS via closed captions because dangerouslySetInnerHTML in React is used
6.1
CVSS
0.9%
EPSS
No
On KEV
Description
BigBlueButton before 2.2.4 allows XSS via closed captions because dangerouslySetInnerHTML in React is used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
before 2.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12113
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12113
Patch
https://github.com/bigbluebutton/bigbluebutton/pull/9017
Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.2.4
www.sakshamanand.com
https://www.sakshamanand.com/cve-2020-12113/
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