PT-2026-60543 · Unknown · Bigbluebutton
CVE-2026-46353
·
Published
2026-07-16
·
Updated
2026-07-16
CVSS v3.1
8.1
High
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
BigBlueButton versions prior to 3.0.21
Description
In bbb-web, checksum validation can be bypassed when the
presentationUploadExternalUrl parameter is supplied to API request handling within the CreateMeeting.java and ValidationService.java files. This allows a user to send valid requests to certain endpoints without providing a checksum.Recommendations
Update to version 3.0.21.
Exploit
Fix
Improper Access Control
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Weakness Enumeration
Related Identifiers
Affected Products
Bigbluebutton