CVE-2025-61532 in SVX
Summary
by MITRE • 10/09/2025
Cross Site Scripting vulnerability in SVX Portal v.2.7A to execute arbitrary code via the TG parameter on last_heard_page.php component
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 10/09/2025
The vulnerability identified as CVE-2025-61532 represents a critical cross site scripting flaw within the SVX Portal version 2.7A software ecosystem. This vulnerability specifically affects the last_heard_page.php component and manifests through improper input validation of the TG parameter, creating a pathway for malicious actors to inject and execute arbitrary code within the context of affected user browsers. The vulnerability resides in the web application's failure to properly sanitize and validate user-supplied input before incorporating it into dynamic web page content, thereby exposing the system to persistent cross site scripting attacks that can potentially escalate to full system compromise.
The technical implementation of this vulnerability stems from a classic input validation failure where the TG parameter in the last_heard_page.php component does not adequately filter or escape user-provided data before rendering it within the web interface. This allows attackers to inject malicious javascript payloads that execute in the victim's browser context when the affected page is loaded. The vulnerability aligns with CWE-79 which specifically addresses cross site scripting flaws in web applications, and more broadly with CWE-20 which encompasses input validation weaknesses. The attack vector leverages the trust relationship between the web application and its users, exploiting the application's insufficient sanitization of user input to deliver malicious scripts that can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
The operational impact of this vulnerability extends beyond simple script execution to potentially enable complete compromise of the affected system. An attacker could leverage this XSS vulnerability to steal user sessions, perform unauthorized actions within the portal, or redirect users to phishing sites designed to capture credentials. The vulnerability affects the SVX Portal's core functionality by potentially allowing unauthorized access to sensitive operational data and communication logs that are typically accessible only to authorized personnel. This represents a significant risk to the security posture of radio communication systems that rely on such portals for monitoring and management, as the compromise could lead to unauthorized access to critical communication infrastructure. The vulnerability's exploitation could also facilitate lateral movement within networks where the portal serves as an access point to other systems.
Mitigation strategies for CVE-2025-61532 should prioritize immediate patching of the SVX Portal software to version 2.7B or later, which contains the necessary input validation fixes. Organizations should implement comprehensive input sanitization measures including proper escaping of user data before rendering, implementing content security policies to prevent script execution, and employing web application firewalls to detect and block malicious payloads. The remediation process should include thorough code review of the last_heard_page.php component to ensure proper parameter validation and output encoding. Additionally, security teams should monitor for exploitation attempts and implement network-based detection mechanisms that can identify suspicious traffic patterns associated with XSS payload delivery. This vulnerability highlights the importance of maintaining up-to-date software versions and implementing robust input validation practices as outlined in the OWASP Top Ten and MITRE ATT&CK framework's web application attack techniques.