CVE-2025-10389 is a medium-severity vulnerability affecting CRMEB versions up to 5.6.1, specifically in the Administrator Password Handler component. The flaw exists in the Save function within the file app/services/system/admin/SystemAdminServices.php. The vulnerability arises due to improper authorization checks when processing the argument ID, allowing an attacker to manipulate this parameter remotely without authentication or user interaction. This improper authorization can lead to unauthorized changes in administrator password settings or related administrative functions, potentially compromising the integrity and confidentiality of the system. The vulnerability does not require user interaction and can be exploited remotely, increasing its risk profile. Although the vendor was notified early, no patch or official response has been issued, and a public exploit has been released, increasing the likelihood of exploitation. The CVSS 4.0 base score is 5.3, reflecting medium severity with network attack vector, low attack complexity, no privileges required, no user interaction, and partial impact on confidentiality, integrity, and availability. The lack of vendor response and public exploit availability make this a significant concern for organizations using affected CRMEB versions.

For European organizations using CRMEB 5.6.0 or 5.6.1, this vulnerability poses a tangible risk to administrative account security and overall system integrity. Unauthorized manipulation of administrator password handling could lead to privilege escalation or unauthorized administrative access, potentially allowing attackers to alter critical system configurations, access sensitive customer data, or disrupt business operations. Given CRMEB's role as a CRM platform, exploitation could compromise customer relationship data, impacting confidentiality and trust. The remote and unauthenticated nature of the exploit increases the threat, especially for organizations exposing CRMEB services to the internet. The absence of a vendor patch means organizations must rely on mitigation strategies to reduce exposure. This vulnerability could also facilitate lateral movement within networks if attackers gain administrative control, increasing the risk of broader compromise. The medium severity score indicates moderate impact, but the real-world risk is elevated by public exploit availability and lack of vendor remediation.

European organizations should immediately audit their CRMEB installations to identify affected versions (5.6.0 and 5.6.1). As no official patch is available, organizations should implement compensating controls such as restricting network access to CRMEB administrative interfaces via firewalls or VPNs to limit exposure to trusted users only. Employ strict access control policies and monitor logs for suspicious activities related to administrator password changes or unauthorized access attempts. Consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block exploitation attempts targeting the vulnerable Save function. Organizations should also isolate CRMEB servers from critical infrastructure to contain potential breaches. Regular backups and incident response plans should be updated to prepare for possible exploitation. Finally, organizations should track vendor communications for any forthcoming patches and plan timely updates once available.