SEPTEMBER 14, 2026
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Case File

CVE-2026-89239

MEDIUM · CVSS 6.1 EPSS 0.16% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-11 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

The vulnerability affects the showAlertMessage() function in WWBN AVideo, allowing attackers to exploit a reflected cross-site scripting flaw by injecting unencoded JavaScript through a crafted Referer header. This can lead to arbitrary code execution in the context of the site for users who visit from a malicious page. Organizations using this Java-based application should prioritize patching to mitigate the risk of client-side attacks.

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-2026-89239
Severity
MEDIUM
CVSS
6.1
EPSS
0.16%
Java

Original NVD Description

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in the showAlertMessage() function that inserts the raw Referer header into a JavaScript comment without encoding. Attackers can craft a Referer header containing */ to close the comment and inject arbitrary JavaScript that executes in the site origin for visitors arriving from the attacker-controlled page.