PT-2026-41738 · Unknown · Bigbluebutton
CVE-2026-27737
·
Published
2026-05-18
·
Updated
2026-05-19
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
BigBlueButton versions prior to 3.0.19
Description
Recording playback in presentation format fails to sanitize user input within the public chat. This allows a malicious actor to execute a targeted Cross-Site Scripting (XSS) attack—a technique where malicious scripts are injected into trusted websites—which is triggered for any user replaying the recording.
Recommendations
Update to version 3.0.19.
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Bigbluebutton