Overview
A critical cross-site scripting (XSS) vulnerability has been identified in the WWBN AVideo 14.4 and dev master commit 8a8954ff, which is extensively used in video streaming applications. This vulnerability, labeled as CVE-2025-50128, could potentially allow attackers to execute arbitrary JavaScript, leading to system compromise or data leakage. Given the widespread usage of WWBN AVideo in numerous web applications, this vulnerability could pose a severe threat to data integrity and privacy.
Vulnerability Summary
CVE ID: CVE-2025-50128
Severity: Critical (9.6 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
WWBN AVideo | 14.4 and dev master commit 8a8954ff
How the Exploit Works
The vulnerability arises from the insufficient sanitization of the videoNotFound 404ErrorMsg parameter in WWBN AVideo. An attacker can craft a specially designed HTTP request incorporating malicious JavaScript code. When a user visits a webpage hosting this malicious content, the unsanitized input is executed in the context of the user’s browser, leading to the execution of arbitrary JavaScript.
Conceptual Example Code
A conceptual example of how the vulnerability might be exploited could be a malicious HTTP request like the following:
GET /videoNotFound?404ErrorMsg=<script>malicious_code_here</script> HTTP/1.1
Host: vulnerable-website.comIn this example, “malicious_code_here” would be replaced by the attacker’s JavaScript code. When a user visits this crafted URL, the malicious JavaScript would execute, potentially leading to various harmful scenarios such as session hijacking, defacement of the website, or even remote code execution on the client-side.
Recommendations
Users of the affected versions of WWBN AVideo are strongly advised to apply the vendor’s patch to mitigate this vulnerability. As a temporary measure, users can also employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and prevent the exploitation of this vulnerability.