What is CVE-2025-34434?

CVE-2025-34434 is a critical-severity vulnerability in World Wide Broadcast Network Avideo, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2025-12-17.

How severe is CVE-2025-34434?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in World Wide Broadcast Network Avideo

CVE-2025-34434

AVideo versions prior to 20.1 with the ImageGallery plugin enabled is vulnerable to unauthenticated file upload and deletion. Plugin endpoints responsible for managing gallery images fail to enforce authentication checks and do not validate ownership, allowing unauthenticated attackers to upload or delete images associated with any image-based video.

Vulnerability class: Broken Authentication

EPSS: 0.004 (34.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

World Wide Broadcast Network Avideo — versions 0
Wwbn Avideo

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com (release-notes, Patch, patch)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
disclosure@vulncheck.com (technical-description, exploit)

Frequently asked questions

What is CVE-2025-34434?: CVE-2025-34434 is a critical-severity vulnerability in World Wide Broadcast Network Avideo, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2025-12-17.
How severe is CVE-2025-34434?: Critical severity. CVSS v3 base score is 9.1 out of 10.