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.
Published: 2026-04-21
Score: 8.3 High
EPSS: < 1% Very Low
KEV: No
Impact: Full Site Configuration Tampering
Action: Immediate Patch
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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-vvfw-4m39-fjqf WWBN AVideo has CSRF in configurationUpdate.json.php Enables Full Site Configuration Takeover Including Encoder URL and SMTP Credentials
History

Fri, 24 Apr 2026 17:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*

Wed, 22 Apr 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Wwbn
Wwbn avideo
Vendors & Products Wwbn
Wwbn avideo

Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
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.
Title WWBN AVideo has CSRF in configurationUpdate.json.php Enables Full Site Configuration Takeover Including Encoder URL and SMTP Credentials
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Subscriptions

Wwbn Avideo
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-21T20:35:55.243Z

Reserved: 2026-04-15T20:40:15.517Z

Link: CVE-2026-40925

cve-icon Vulnrichment

Updated: 2026-04-21T20:35:01.034Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-21T21:16:45.903

Modified: 2026-04-24T16:46:18.467

Link: CVE-2026-40925

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T06:45:10Z

Weaknesses