CVE-2026-41127

MEDIUM EPSS 7.6%

Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago

6.5 CVSS 3.1

Medium

Published Apr 22, 2026 2mo ago

Last Modified Jun 17, 2026 2w ago

Description

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known workarounds are available.

CVSS Details

Base Score

6.5

Exploitability

2.8

Impact

3.6

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity High

Availability None

Threat Intelligence

EPSS Exploit Probability

7.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-639

References 1

github.com https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.