CVE-2025-49853 is a critical SQL Injection vulnerability affecting ControlID's iDSecure On-premises product, specifically versions 4.7.48.0 and earlier. The vulnerability arises from improper neutralization of special elements used in SQL commands (CWE-89), allowing an unauthenticated attacker to inject arbitrary SQL syntax into backend database queries. This flaw enables attackers to manipulate SQL statements executed by the application, potentially leading to unauthorized data disclosure, data modification, or even complete compromise of the underlying database. Since the vulnerability requires no authentication (AV:N/PR:N/UI:N) and has low attack complexity (AC:L), it can be exploited remotely without user interaction. The CVSS 4.0 base score of 9.3 reflects the critical nature of this vulnerability, with high impact on confidentiality and integrity (VC:H/VI:H) but no impact on availability or authentication. The vulnerability affects on-premises deployments of iDSecure, a security management system commonly used for access control and identity management in physical security environments. Although no known exploits are currently reported in the wild, the ease of exploitation and critical impact make this a high-risk issue that demands immediate attention. The lack of available patches at the time of publication further increases the urgency for mitigation and risk management.

For European organizations, the impact of this vulnerability could be severe, especially for those relying on ControlID iDSecure On-premises for physical access control and identity management. Exploitation could lead to unauthorized disclosure of sensitive personal data, including employee and visitor access logs, potentially violating GDPR and other data protection regulations. Attackers could also manipulate or delete access records, undermining security monitoring and incident response capabilities. In critical infrastructure sectors such as transportation, energy, healthcare, and government facilities, this could facilitate unauthorized physical access, leading to broader security breaches. The vulnerability's remote, unauthenticated exploitability increases the risk of widespread attacks, particularly in environments where iDSecure is exposed to untrusted networks or insufficiently segmented internal networks. The absence of a patch means organizations must rely on compensating controls to mitigate risk until a fix is available. Overall, this vulnerability poses a significant threat to the confidentiality and integrity of security systems and data within European enterprises, with potential regulatory and operational consequences.

Given the lack of an official patch at the time of disclosure, European organizations should implement the following specific mitigation measures: 1) Immediately restrict network access to the iDSecure On-premises management interfaces by implementing strict firewall rules and network segmentation, ensuring only trusted administrative hosts can communicate with the system. 2) Deploy Web Application Firewalls (WAFs) or intrusion prevention systems (IPS) with custom rules to detect and block common SQL injection payloads targeting the iDSecure application. 3) Conduct thorough input validation and sanitization on any custom integrations or scripts interacting with iDSecure databases, if applicable. 4) Monitor database query logs and application logs for anomalous or unexpected SQL queries that may indicate exploitation attempts. 5) Enforce the principle of least privilege on database accounts used by iDSecure, limiting their permissions to only necessary operations to reduce potential damage from injection attacks. 6) Prepare for rapid deployment of vendor patches by maintaining up-to-date asset inventories and testing environments. 7) Educate security and IT teams about this vulnerability to enhance detection and response capabilities. These targeted actions go beyond generic advice by focusing on network-level controls, monitoring, and privilege restrictions tailored to the specific product and vulnerability characteristics.