Auth bypass in Wwbn Avideo
CVE-2026-90544
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate video access permissions in the videoAddViewCount.json.php endpoint before updating view statistics. Authenticated attackers can increment view counts and watch-time on videos they cannot access by submitting requests with arbitrary video IDs.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-2fgr-549m-8g5w (vendor-advisory)
- www.vulncheck.com/advisories/wwbn-avideo-missing-authorization-via-videoaddview… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-90544?
- CVE-2026-90544 is a medium-severity vulnerability in Wwbn Avideo, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-12.
- How severe is CVE-2026-90544?
- Medium severity. CVSS v3 base score is 4.3 out of 10.