Auth bypass in Wwbn Avideo
CVE-2026-59808
AVideo through commit 9c39d8c8 contains an authentication bypass vulnerability where deduplicateByEncoderQueueId() returns video_id_hash credentials for any video by encoder_queue_id without ownership verification, and useVideoHashOrLogin() converts this hash into passwordless login as the video owner. Attackers with upload permission can retrieve an administrator's video_id_hash by omitting the videos_id parameter, then use that hash in an unauthenticated request to gain administrative session access and modify system configuration.
Vulnerability class: Broken Authentication
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: 0.006 (46.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% 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: 0.006 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-q32p-rw3q-8x3r (vendor-advisory)
- www.vulncheck.com/advisories/avideo-authentication-bypass-via-unkeyed-video-has… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-59808?
- CVE-2026-59808 is a high-severity vulnerability in Wwbn Avideo, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2026-08-22.
- How severe is CVE-2026-59808?
- High severity. CVSS v3 base score is 8.8 out of 10.