Vulnerability identifier: #VU70690

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23490

CWE-ID: CWE-863

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BigBlueButton
Web applications / Modules and components for CMS

Vendor: Blindside Networks

Description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to improper access control to polling votes. A remote user can gain access to the contents of the collection, which include the individual poll responses.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BigBlueButton: 2.0 - 2.3.19

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External links
http://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0
http://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4qgc-xhw5-6qfg

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.