Executive Summary

This vulnerability is a reflected cross-site scripting (XSS) issue found in Open ISES Tickets versions before 3.44.2, specifically in the routes_i.php file.

It occurs because the ticket_id GET parameter is not properly sanitized before being inserted into HTML form hidden input value attributes.

An authenticated attacker can inject arbitrary JavaScript code through this parameter, which then executes in the victim's browser when the response is rendered.

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Impact Analysis

This vulnerability can allow an attacker to execute malicious JavaScript in the context of a victim's browser.

Such execution can lead to theft of sensitive information, session hijacking, or performing actions on behalf of the victim.

Because the attacker must be authenticated, the risk is limited to users who have valid access, but it still poses a medium severity threat.

Updating to version 3.44.2 or later mitigates this risk.

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Detection Guidance

This vulnerability can be detected by monitoring HTTP requests to the routes_i.php endpoint, specifically looking for the ticket_id GET parameter containing suspicious or encoded JavaScript payloads.

A practical approach is to use web proxy tools or network traffic analyzers to capture and inspect requests for signs of reflected cross-site scripting attempts.

• Use curl or wget to send crafted requests with JavaScript payloads in the ticket_id parameter and observe if the response reflects the payload unsanitized.
• Example curl command to test the vulnerability: curl -i "http://target/routes_i.php?ticket_id=<script>alert(1)</script>"
• Use tools like Burp Suite or OWASP ZAP to automate detection of reflected XSS by injecting payloads into the ticket_id parameter and analyzing responses.

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Mitigation Strategies

The primary immediate mitigation step is to upgrade Open ISES Tickets to version 3.44.2 or later, where this vulnerability has been fixed.

Until the update can be applied, restrict access to the affected routes_i.php endpoint to trusted authenticated users only, minimizing exposure.

Implement web application firewall (WAF) rules to detect and block requests containing suspicious script payloads in the ticket_id parameter.

Educate users to be cautious about clicking on suspicious links that might exploit this reflected XSS vulnerability.

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Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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