CVE-2025-5894 is a high-severity vulnerability identified in version 1.0 of the Smart Parking Management System developed by Honding Technology. The vulnerability is classified under CWE-862, which corresponds to Missing Authorization. This flaw allows remote attackers who already have regular user privileges within the system to access functionality that should be restricted, specifically the ability to create new administrator accounts. By exploiting this vulnerability, an attacker can escalate their privileges from a standard user to an administrator without proper authorization checks. Once an attacker creates an administrator account, they can log into the system with elevated privileges, potentially gaining full control over the Smart Parking Management System. The CVSS v3.1 base score is 8.8, indicating a high level of severity. The vector string (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) shows that the attack can be performed remotely over the network with low attack complexity, requires the attacker to have some privileges (regular user), does not require user interaction, and results in high impact on confidentiality, integrity, and availability. No patches or known exploits in the wild have been reported at the time of publication. The vulnerability arises from insufficient authorization checks on sensitive functionality, which is a critical security design flaw in access control mechanisms.

For European organizations deploying Honding Technology's Smart Parking Management System version 1.0, this vulnerability poses a significant risk. Successful exploitation can lead to unauthorized administrative access, enabling attackers to manipulate parking management operations, alter configurations, disable security controls, or disrupt service availability. This could result in operational downtime, financial losses, and reputational damage. Additionally, unauthorized access to administrative functions may expose sensitive data such as user information, payment details, or location data, raising privacy concerns under GDPR regulations. The ability to create administrator accounts remotely also increases the risk of persistent unauthorized access and lateral movement within the organization's network. Given the critical role of smart parking systems in urban infrastructure, exploitation could impact public services and critical infrastructure, especially in smart city environments. The lack of known exploits currently reduces immediate risk, but the high severity and ease of exploitation warrant urgent attention.

European organizations should immediately assess their deployment of Honding Technology Smart Parking Management System version 1.0 and implement compensating controls until an official patch is available. Specific recommendations include: 1) Restrict network access to the management interfaces of the parking system using network segmentation and firewall rules to limit exposure to trusted administrative networks only. 2) Enforce strong authentication and monitoring for all user accounts, especially those with elevated privileges, to detect suspicious account creation or privilege escalation activities. 3) Conduct thorough access reviews and remove unnecessary user privileges to minimize the number of users with regular access. 4) Implement application-layer access control proxies or web application firewalls (WAFs) that can detect and block unauthorized attempts to access administrative functions. 5) Monitor system logs for anomalous activities related to account creation and login events. 6) Engage with Honding Technology to obtain information on patches or updates addressing this vulnerability and plan for prompt deployment once available. 7) Consider isolating the affected system from critical networks until the vulnerability is remediated to reduce risk exposure.