Auth bypass in World Wide Broadcast Network Avideo
CVE-2025-34437
AVideo versions prior to 20.1 permit any authenticated user to upload comment images to videos owned by other users. The endpoint validates authentication but omits ownership checks, allowing attackers to perform unauthorized uploads to arbitrary video objects.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- World Wide Broadcast Network Avideo — versions 0
- Wwbn Avideo
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/commit/4a53ab2056 (release-notes, Patch, patch)
- github.com/WWBN/AVideo/commit/d411f91805 (Patch, patch)
- www.vulncheck.com/advisories/avideo-idor-arbitrary-comment-image-upload (Third Party Advisory, third-party-advisory)
- chocapikk.com/posts/2025/avideo-security-vulnerabilities/ (technical-description, exploit)
Frequently asked questions
- What is CVE-2025-34437?
- CVE-2025-34437 is a high-severity vulnerability in World Wide Broadcast Network Avideo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2025-12-17.
- How severe is CVE-2025-34437?
- High severity. CVSS v3 base score is 8.8 out of 10.