CVE-2021-45900: Vivoh Webinar Manager

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Vivoh Webinar Manager before 3.6.3.0 has improper API authentication. When a user logs in to the administration configuration web portlet, a VIVOH_AUTH cookie is assigned so that they can be uniquely identified. Certain APIs can be successfully executed without proper authentication. This can let an attacker impersonate as victim and make state changing requests on their behalf.

Affected products

• Vivoh Webinar Manager: before 3.6.3.0 (fixed in 3.6.3.0)

Published 2022-03-30. Last modified 2026-06-17.