Ghostwire

CVE-2026-46404: BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, the presentation URL validation did not properly...

MEDIUM CVSS 6.8

Published: July 16, 2026 | Last Modified: July 16, 2026

Description

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, the presentation URL validation did not properly restrict access to site local and link local addresses. The redirect following logic now pins resolved IPs. This issue is fixed in version 3.0.23.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

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