Is CVE-2026-40925 actively exploited?

No active exploitation of CVE-2026-40925 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40925 be exploited remotely?

Yes. CVE-2026-40925 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40925?

CVE-2026-40925 has a CVSS score of 8.3 (HIGH).

HOME VULNERABILITIESCVE-2026-40925

HIGH

CVE-2026-40925

CWE-352Published: April 21, 2026· Updated: Apr 24, 2026

8.3

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.3th

Official 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.

NVD Source

Technical Analysis

CVE-2026-40925 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.3.