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.
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Fixes

Solution

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History

Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
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.
Title AVideo: CSRF on emailAllUsers.json.php Enables Mass Phishing Email to All Users
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-31T20:42:37.985Z

Reserved: 2026-03-30T17:15:52.500Z

Link: CVE-2026-34611

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-31T21:16:31.297

Modified: 2026-03-31T21:16:31.297

Link: CVE-2026-34611

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses