---
id: CVE-2026-90543
title: >-
  WWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier,
  with the Live plugin enabled, contains a missing authentication vulnerability
  in plugin/Live/socketMessageLiveOwner.json.php
summary: >-
  WWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier,
  with the Live plugin enabled, contains a missing authentication vulnerability
  in plugin/Live/socketMessageLiveOwner.json.php. The script reads the `key` and
  `msg…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-306
vendor: WWBN
product: AVideo
affected:
  - AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1
published: '2026-09-12'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:07:11.883'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90543'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-wcg2-x62c-m28x'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wwbn-avideo-missing-authentication-via-socketmessageliveowner-json-php
    label: disclosure@vulncheck.com
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-vr35-39vf-9qp9'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00604
epssPercentile: 0.46562
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-14T18:26:52.625998Z'
ingestedAt: '2026-09-14T15:23:07.479Z'
---

## Overview

WWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier, with the Live plugin enabled, contains a missing authentication vulnerability in plugin/Live/socketMessageLiveOwner.json.php. The script reads the `key` and `msg` parameters from $_REQUEST, resolves the stream owner via LiveTransmition::keyExists, and verifies that the stream owner (not the caller) is an administrator; it performs no User::isLogged() check and enforces no CSRF token. As a result, an unauthenticated remote attacker who knows an administrator's Live stream key can call sendSocketSuccessMessageToUsers_id and deliver arbitrary in-app/socket notification messages to that administrator. The issue was unpatched at the time of publication.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.