CVE-2023-43798
Medium
Description
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.
SeverityMedium
CVSS5.6
Exploit probability—
ProductBigbluebutton
PublishedOct 30, 2023
First seenOct 30, 2023
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- bigbluebutton bigbluebutton2.6.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| bigbluebutton bigbluebutton | v < 2.6.12, 2.7.0 | 2.6.12 |
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