Auth bypass in Wwbn Avideo
CVE-2026-33719
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the CDN plugin endpoints `plugin/CDN/status.json.php` and `plugin/CDN/disable.json.php` use key-based authentication with an empty string default key. When the CDN plugin is enabled but the key has not been configured (the default state), the key validation check is completely bypassed, allowing any unauthenticated attacker to modify the full CDN configuration — including CDN URLs, storage credentials, and the authentication key itself — via mass-assignment through the `par` request parameter. Commit adeff0a31ba04a56f411eef256139fd7ed7d4310 contains a patch.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.005 (40.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% 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: 0.005 · change: +0.001
Affected products
- Wwbn Avideo — versions <= 26.0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-r64r-883r-wcwh (Exploit, Vendor Advisory)
- github.com/WWBN/AVideo/commit/adeff0a31ba04a56f411eef256139fd7ed7d4310 (Patch)
Frequently asked questions
- What is CVE-2026-33719?
- CVE-2026-33719 is a high-severity vulnerability in Wwbn Avideo, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2026-03-23.
- How severe is CVE-2026-33719?
- High severity. CVSS v3 base score is 8.6 out of 10.