Is CVE-2026-34611 actively exploited?

CVE-2026-34611 has no public evidence of in-the-wild exploitation as of 2026-04-01.

What is the CVSS score for CVE-2026-34611?

CVE-2026-34611 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

How do I patch CVE-2026-34611?

Patch guidance is available from wwbn security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-34611.

CVE-2026-34611 - remediation guidance & executive summary

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none
Weaknesses: CWE-352 · Cross-Site Request Forgery

Metadata

Primary Vendor: WWBN
Published: 3/31/2026
Last Modified: 4/1/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

wwbn : avideo

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-34611. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-34611

View on NIST NVD

CVE-2026-34611 vulnerability