CVE-2025-12342 identifies a SQL injection vulnerability in the Serdar Bayram Ghost Hot Spot product, affecting versions up to 20251014. The vulnerability resides in an unspecified function within the /Auth.php file of the Login component, which processes user authentication requests. Due to improper sanitization or validation of input parameters, an attacker can remotely inject malicious SQL commands directly into backend database queries. This injection can lead to unauthorized data access, modification, or deletion, potentially compromising user credentials, session data, or other sensitive information stored in the database. The attack vector requires no authentication or user interaction, making it highly accessible to remote attackers. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the ease of exploitation and moderate impact on confidentiality, integrity, and availability. Although an exploit has been published publicly, no confirmed incidents of exploitation in the wild have been reported. The vendor was contacted early but has not issued any patches or advisories, leaving users exposed. The lack of patch availability necessitates alternative mitigations such as network segmentation, web application firewalls, and input validation at the application or database layer. Organizations relying on Ghost Hot Spot for managing wireless access or captive portals should prioritize risk assessment and containment strategies.

For European organizations, exploitation of this vulnerability could lead to unauthorized access to sensitive user data and credentials managed by the Ghost Hot Spot system, potentially resulting in data breaches and privacy violations under GDPR. Integrity of authentication data could be compromised, allowing attackers to bypass login controls or escalate privileges. Availability of hotspot services may be disrupted through database corruption or denial-of-service conditions caused by malicious queries. Organizations providing public or enterprise wireless access using this product could face operational downtime and reputational damage. The medium severity rating reflects a significant but not critical threat; however, the absence of vendor patches increases risk exposure. Compliance and regulatory consequences could arise if personal data is leaked or service disruptions affect critical infrastructure. The threat is particularly relevant for sectors with public-facing wireless networks such as hospitality, transportation hubs, and municipal services across Europe.

Until an official patch is released, European organizations should implement strict network-level controls to limit access to the Ghost Hot Spot management interfaces, including IP whitelisting and VPN-only access. Deploy web application firewalls (WAF) with custom rules to detect and block SQL injection patterns targeting the /Auth.php endpoint. Conduct thorough input validation and sanitization on all user-supplied data at the application layer if source code access is available. Monitor logs for unusual database query patterns or repeated failed login attempts indicative of exploitation attempts. Segment the network to isolate the hotspot management system from critical infrastructure and sensitive data stores. Regularly back up the database to enable recovery in case of data corruption. Engage in active threat hunting for indicators of compromise related to this vulnerability. Finally, maintain communication with the vendor and security communities for updates or patches and plan for rapid deployment once available.