SEPTEMBER 13, 2026
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Case File

CVE-2026-90543

MEDIUM · CVSS 5.3 EPSS 0.28% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-12 · Last synced 2026-09-13

CyberRota Analysis

AI-Generated

The vulnerability affects the WWBN AVideo platform with the Live plugin enabled, allowing unauthenticated remote attackers to exploit a missing authentication check in the socketMessageLiveOwner.json.php script. This flaw enables attackers who possess an administrator's Live stream key to send arbitrary notifications to the administrator, potentially leading to unauthorized access or manipulation of in-app communications. Organizations using this version of AVideo should prioritize patching this vulnerability to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-90543
Severity
MEDIUM
CVSS
5.3
EPSS
0.28%

Original NVD Description

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.