Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Permissions/setPermission.json.php` endpoint accepts GET parameters for a state-changing operation that modifies user group permissions. The endpoint has no CSRF token validation, and the application explicitly sets `session.cookie_samesite=None` on session cookies. This allows an unauthenticated attacker to craft a page with `<img>` tags that, when visited by an admin, silently grant arbitrary permissions to the attacker's user group — escalating the attacker to near-admin access. As of time of publication, no known patched versions are available.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wwbn | Avideo | <= 26.0 |
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvjExploitVendor Advisory
- https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvjExploitVendor Advisory
FAQ
What is CVE-2026-33649?
CVE-2026-33649 is a vulnerability with a CVSS score of 8.1 (HIGH). WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Permissions/setPermission.json.php` endpoint accepts GET parameters for a state-changing operation that ...
How severe is CVE-2026-33649?
CVE-2026-33649 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33649?
Check the references section above for vendor advisories and patch information. Affected products include: Wwbn Avideo.