CVE-2026-40925

CVSS Score & Metrics

Base Score

8.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L                                    

Vulnerability Description

WWBN AVideo is an open source video platform. In versions 29.0 and prior, `objects/configurationUpdate.json.php` (also routed via `/updateConfig`) persists dozens of global site settings from `$_POST` but protects the endpoint only with `User::isAdmin()`. It does not call `forbidIfIsUntrustedRequest()`, does not verify a `globalToken`, and does not validate the Origin/Referer header. Because AVideo intentionally sets `session.cookie_samesite=None` to support cross-origin iframe embedding, a logged-in administrator who visits an attacker-controlled page will have the browser auto-submit a cross-origin POST that rewrites the site's encoder URL, SMTP credentials, site `<head>` HTML, logo, favicon, contact email, and more in a single request. Commit f9492f5e6123dff0292d5bb3164fde7665dc36b4 contains a fix.

Vulnerability Details

Published Date

April 21, 2026

Last Modified

April 24, 2026

CWE ID

CWE-352

Source

NVD

Vendor

WWBN

Product

AVideo

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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