Vulnerability Description
WWBN AVideo is an open source video platform. In versions 29.0 and prior, multiple AVideo JSON endpoints under `objects/` accept state-changing requests via `$_REQUEST`/`$_GET` and persist changes tied to the caller's session user, without any anti-CSRF token, origin check, or referer check. A malicious page visited by a logged-in victim can silently cast/flip the victim's like/dislike on any comment (`objects/comments_like.json.php`), post a comment authored by the victim on any video, with attacker-chosen text (`objects/commentAddNew.json.php`), and/or delete assets from any category (`objects/categoryDeleteAssets.json.php`) when the victim has category management rights. Each endpoint is reachable from a browser via a simple `<img src="…">` tag or form submission, so exploitation only requires the victim to load an attacker-controlled HTML resource. Commit 7aaad601bd9cd7b993ba0ee1b1bea6c32ee7b77c contains a fix.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wwbn | Avideo | <= 29.0 |
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/commit/7aaad601bd9cd7b993ba0ee1b1bea6c32ee7b77cPatch
- https://github.com/WWBN/AVideo/security/advisories/GHSA-x2pw-9c38-cp2jVendor AdvisoryExploitMitigation
- https://github.com/WWBN/AVideo/security/advisories/GHSA-x2pw-9c38-cp2jVendor AdvisoryExploitMitigation
FAQ
What is CVE-2026-40928?
CVE-2026-40928 is a vulnerability with a CVSS score of 5.4 (MEDIUM). WWBN AVideo is an open source video platform. In versions 29.0 and prior, multiple AVideo JSON endpoints under `objects/` accept state-changing requests via `$_REQUEST`/`$_GET` and persist changes tie...
How severe is CVE-2026-40928?
CVE-2026-40928 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40928?
Check the references section above for vendor advisories and patch information. Affected products include: Wwbn Avideo.