Vulnerability Description
WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo endpoint objects/emailAllUsers.json.php allows administrators to send HTML emails to every registered user on the platform. While the endpoint verifies admin session status, it does not validate a CSRF token. Because AVideo sets SameSite=None on session cookies, a cross-origin POST request from an attacker-controlled page will include the admin's session cookie automatically. An attacker who lures an admin to a malicious page can send an arbitrary HTML email to every user on the platform, appearing to originate from the instance's legitimate SMTP address. At time of publication, there are no publicly available patches.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wwbn | Avideo | <= 26.0 |
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/security/advisories/GHSA-c4xj-x7p8-3x7qExploitVendor Advisory
- https://github.com/WWBN/AVideo/security/advisories/GHSA-c4xj-x7p8-3x7qExploitVendor Advisory
FAQ
What is CVE-2026-34611?
CVE-2026-34611 is a vulnerability with a CVSS score of 6.5 (MEDIUM). WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo endpoint objects/emailAllUsers.json.php allows administrators to send HTML emails to every registered user on the p...
How severe is CVE-2026-34611?
CVE-2026-34611 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-34611?
Check the references section above for vendor advisories and patch information. Affected products include: Wwbn Avideo.