CVE-2025-15112 is an open redirect vulnerability identified in Ksenia Security Lares 4.0 Home Automation software, specifically affecting versions 1.6 and 1.0.0.15. The vulnerability resides in the 'cmdOk.xml' script, where the 'redirectPage' GET parameter is insufficiently validated, allowing attackers to craft URLs that redirect authenticated users to arbitrary external websites. This manipulation can be exploited by embedding malicious links on trusted domains, leveraging user trust to facilitate phishing, credential harvesting, or malware distribution. The vulnerability requires user interaction (clicking the malicious link) but does not require authentication or privileges, making it accessible to remote attackers. The CVSS 4.0 score of 5.1 reflects a medium severity, considering the network attack vector, low attack complexity, no privileges required, but user interaction is necessary. The vulnerability does not directly compromise confidentiality, integrity, or availability of the home automation system but poses a significant risk by enabling social engineering attacks that could lead to secondary compromises. No known public exploits have been reported yet, and no official patches or mitigations have been published by the vendor at the time of disclosure. Given the nature of home automation systems, exploitation could indirectly impact physical security or privacy if attackers leverage redirected users to malicious payloads or phishing sites targeting credentials or session tokens.

For European organizations, especially those deploying Ksenia Security Lares 4.0 in residential or commercial environments, this vulnerability presents a moderate risk primarily through social engineering vectors. Attackers can exploit the open redirect to lure authenticated users into visiting malicious sites, potentially leading to credential theft, session hijacking, or malware infection. This can undermine user trust in the home automation system and may lead to unauthorized access to physical security controls or personal data. While the vulnerability itself does not allow direct system compromise, the secondary effects could disrupt operations or privacy. Organizations managing critical infrastructure or sensitive environments with integrated home automation could face amplified risks if attackers use this vector as an initial foothold. The lack of authentication requirements and ease of exploitation increase the likelihood of opportunistic attacks, especially in sectors with less mature cybersecurity awareness. The impact is heightened in environments where users frequently interact with system-generated links or notifications.

1. Implement strict validation and sanitization of the 'redirectPage' parameter to allow only predefined, trusted internal URLs, effectively preventing arbitrary redirection. 2. Apply any vendor-provided patches or updates as soon as they become available to address this vulnerability at the source. 3. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious redirect attempts targeting the affected endpoints. 4. Conduct user awareness training focused on recognizing phishing attempts and the risks of clicking unexpected or suspicious links, especially those appearing to originate from trusted domains. 5. Monitor logs for unusual redirect requests or patterns indicative of exploitation attempts. 6. Where feasible, disable or restrict the use of URL parameters that control redirection or implement token-based validation to ensure redirect integrity. 7. For organizations with integrated home automation, segment these systems from critical IT infrastructure to limit potential lateral movement following a successful social engineering attack.