Overview
This blog post aims to provide an in-depth analysis of the recent vulnerability identified as CVE-2025-36548. This cross-site scripting (XSS) vulnerability affects WWBN AVideo version 14.4 and the dev master commit 8a8954ff. The vulnerability has been reported to exist within the LoginWordPress loginForm cancelUri parameter functionality of the software. As a result, it presents an alarming risk to all users of the affected software, allowing attackers to execute arbitrary Javascript, potentially leading to system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-36548
Severity: High (8.3 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 is exploited when an attacker crafts a specially designed HTTP request, which is then sent to the vulnerable endpoint. The HTTP request includes malicious Javascript code within the ‘cancelUri’ parameter of the LoginWordPress loginForm function. If a user visits a webpage that sends this request, the malicious Javascript code is executed, triggering the vulnerability.
Conceptual Example Code
The following is a conceptual example of how the vulnerability might be exploited. This example demonstrates a maliciously crafted HTTP request to the vulnerable endpoint.
GET /LoginWordPress/loginForm HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
cancelUri=http://malicious.example.com?payload=<script>malicious_code_here</script>In the above example, if a user visits a webpage that triggers this type of request, the browser would execute the malicious code included within the “ tag in the `cancelUri` parameter.
Mitigation and Prevention
The best way to mitigate this vulnerability is by applying the vendor-provided patch. If this is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation. It is crucial to ensure that these systems are configured to detect and block attempts to exploit this particular vulnerability. Regular software updates and patches are the most effective way to protect against such vulnerabilities. Always maintain the latest version of all software to minimize the risk of exploitation.
