Auth bypass in Wwbn Avideo
CVE-2026-33764
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the AI plugin's `save.json.php` endpoint loads AI response objects using an attacker-controlled `$_REQUEST['id']` parameter without validating that the AI response belongs to the specified video. An authenticated user with AI permissions can reference any AI response ID — including those generated for other users' private videos — and apply the stolen AI-generated content (titles, descriptions, keywords, summaries, or full transcriptions) to their own video, effectively exfiltrating the information. Commit aa2c46a806960a0006105df47765913394eec142 contains a patch.
Vulnerability class: IDOR (Insecure Direct Object Reference)
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:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (19.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Wwbn Avideo — versions <= 26.0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-g39v-qrj6-jxrh (Exploit, Vendor Advisory)
- github.com/WWBN/AVideo/commit/aa2c46a806960a0006105df47765913394eec142 (Patch)
Frequently asked questions
- What is CVE-2026-33764?
- CVE-2026-33764 is a medium-severity vulnerability in Wwbn Avideo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-03-27.
- How severe is CVE-2026-33764?
- Medium severity. CVSS v3 base score is 4.3 out of 10.