High severity · published Apr 23, 2020
CVE-2020-12112
BigBlueButton before 2.2.5 allows remote attackers to obtain sensitive files via Local File Inclusion
7.5
CVSS
5.3%
EPSS
No
On KEV
Description
BigBlueButton before 2.2.5 allows remote attackers to obtain sensitive files via Local File Inclusion.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.3% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
before 2.2.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12112
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12112
Third Party Advisory
https://cwe.mitre.org/data/definitions/23.html
Patch
https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.4...v2.2.5
Exploit
https://github.com/tchenu/CVE-2020-12112
Third Party Advisory
https://twitter.com/bigbluebutton/status/1252706369486180353
Third Party Advisory
https://twitter.com/thibeault_chenu/status/1249976515917422593
More from Bigbluebutton
9.8
CVE-2020-27605
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."
9.8
CVE-2020-27602
BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken
9.8
CVE-2020-12443
BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename (lowercase) value can be a .pdf filename while the presFilename (mixed case)…
8.8
CVE-2023-42803
BigBlueButton Unrestricted File Upload vulnerability
8.5
CVE-2026-46682
BigBlueButton: Blind SQL Injection AUTH (Moderator)