CVE-2023-25599 in MiVoice Connect
Summary
by MITRE • 05/25/2023
A vulnerability in the conferencing component of Mitel MiVoice Connect through 19.3 SP2 and 20.x, 21.x, and 22.x through 22.24.1500.0 could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the test_presenter.php page. A successful exploit could allow an attacker to execute arbitrary scripts.
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Analysis
by VulDB Data Team • 11/01/2025
The vulnerability identified as CVE-2023-25599 represents a critical reflected cross-site scripting flaw within the conferencing functionality of Mitel MiVoice Connect versions up to 19.3 SP2 and 20.x through 22.24.1500.0. This security weakness specifically affects the test_presenter.php web page component that handles user input without proper sanitization or validation mechanisms. The flaw exists in the application's input processing logic where user-supplied parameters are directly reflected back to the browser without adequate filtering or encoding, creating an avenue for malicious actors to inject and execute arbitrary JavaScript code within the context of authenticated users' browsers.
The technical implementation of this vulnerability stems from insufficient input validation practices that fail to properly sanitize or escape user-provided data before it is rendered in web responses. When an attacker crafts malicious input parameters and directs a victim to a specially crafted URL containing these inputs, the application processes the request and reflects the malicious code back to the victim's browser. This creates a reflected XSS vector where the attacker's script executes in the victim's browser context with the privileges of the authenticated user, potentially enabling session hijacking, credential theft, or other malicious activities. The vulnerability operates at the application layer and requires no authentication to exploit, making it particularly dangerous in environments where users frequently interact with web-based conferencing interfaces.
The operational impact of this vulnerability extends beyond simple script execution as it can enable sophisticated attack chains that compromise entire user sessions and potentially provide attackers with persistent access to conferencing systems. An attacker could leverage this vulnerability to steal session cookies, redirect users to malicious sites, inject malicious content into conference calls, or even escalate privileges within the application if additional vulnerabilities exist. The reflected nature of the attack means that victims must be tricked into clicking malicious links, but once exploited, the consequences can be severe for organizations relying on secure communication platforms for business operations, particularly in regulated industries where data confidentiality and integrity are paramount.
Organizations should immediately implement mitigation strategies including input validation and output encoding measures to prevent the reflection of untrusted data back to users. The recommended approach involves implementing proper parameter sanitization on all input fields, particularly those used in the test_presenter.php page, and ensuring that all user-supplied content is properly encoded before being rendered in web responses. Additionally, organizations should deploy web application firewalls to detect and block suspicious input patterns, implement content security policies to limit script execution, and consider disabling unnecessary web components or pages that are not essential to business operations. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a potential entry point for attackers following ATT&CK technique T1566 for initial access through malicious links or payloads. Regular security updates and patch management processes should be prioritized to address this and similar vulnerabilities in communication infrastructure components.