CVE-2023-43797
Medium
Description
BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds.
SeverityMedium
CVSS6.3
Exploit probability—
ProductBigbluebutton
PublishedOct 30, 2023
First seenOct 30, 2023
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- bigbluebutton bigbluebutton2.6.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| bigbluebutton bigbluebutton | v < 2.6.11, 2.7.0 | 2.6.11 |
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