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TI-2021-20910 Aliases CVE-2021-45900GHSA-q25m-8fmg-wgf6

Vivoh Webinar Manager before 3.6.3.0 has improper API authentication.

Priority LOW 30CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.0074 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vivoh:webinar_manager:*:*:*:*:*:*:*:*before 3.6.3.0VulnerableVivoh
  • cpe:2.3:a:vivoh:webinar_manager:*:*:*:*:*:*:*:* Versions before 3.6.3.0 Vulnerable ·Vivoh

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-45900
  2. 2026-10-03 Alias added: GHSA-q25m-8fmg-wgf6

References

Exploit 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences