Vulnerability Bulletins

MSA-23-0035: Duplicating a BigBlueButton activity assigns the same meeting ID

System information

Affected software PHP


por Michael Hawkins. When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.Severity/Risk:MinorVersions affected:4.2 to 4.2.2, 4.1 to 4.1.5 and 4.0 to 4.0.10Versions fixed:4.2.3, 4.1.6 and 4.0.11Reported by:Lionel CaylatWorkaround:Manually create a fresh BigBlueButton activity instead of duplicating, until the patch has been applied.CVE

More info:

Standar resources

Property Value
CVE CVE-2023-5543.

Version history

Version Comments Date
Ministerio de Defensa