CVE-2025-62192 is an SQL Injection vulnerability identified in Japan Total System Co.,Ltd.'s GroupSession collaboration software suite, including the Free edition (prior to version 5.3.0), byCloud (prior to 5.3.3), and ZION (prior to 5.3.2). The root cause is improper neutralization of special elements used in SQL commands, allowing an authenticated user to inject crafted SQL statements. This can lead to unauthorized reading or modification of data stored in the backend database. The vulnerability requires the attacker to have valid credentials, but no additional user interaction is necessary, and the attack can be launched remotely over the network. The CVSS 3.0 score of 5.4 reflects a medium severity level, with the main impact on confidentiality and integrity, but no impact on availability. Although no public exploits have been reported yet, the presence of this vulnerability in collaboration platforms that often handle sensitive organizational data makes it a significant concern. The vulnerability affects multiple versions of GroupSession products, necessitating updates to the fixed versions to remediate the issue. Technical mitigation should also include enhanced input validation and sanitization to prevent injection attacks. Monitoring and auditing database queries and access patterns can help detect exploitation attempts. Given the collaborative nature of the software, exploitation could expose sensitive project data or alter records, potentially disrupting business processes or causing data integrity issues.

For European organizations using affected versions of GroupSession products, this vulnerability poses a risk of unauthorized data disclosure and data tampering within their collaboration platforms. Since GroupSession is used for groupware and project management, sensitive business information, internal communications, and project data could be exposed or altered. This could lead to intellectual property theft, loss of data integrity, and potential regulatory compliance violations under GDPR if personal data is involved. The requirement for authenticated access limits the attack surface but does not eliminate risk, especially if credential compromise or insider threats exist. The lack of availability impact means systems remain operational, but trustworthiness of data is undermined. Organizations relying heavily on GroupSession for critical workflows may face operational disruptions due to corrupted data or the need for forensic investigations. The medium severity rating suggests prioritizing remediation but not immediate emergency response unless exploitation evidence emerges.

1. Upgrade all affected GroupSession products to the fixed versions: Free edition to 5.3.0 or later, byCloud to 5.3.3 or later, and ZION to 5.3.2 or later. 2. Implement strict input validation and sanitization on all user inputs that interact with SQL queries to prevent injection attacks. 3. Enforce the principle of least privilege for user accounts to minimize the impact of compromised credentials. 4. Monitor database logs and application logs for unusual query patterns or unauthorized data access attempts. 5. Conduct regular security audits and penetration testing focused on injection vulnerabilities. 6. Educate users about credential security to reduce risk of account compromise. 7. Consider deploying Web Application Firewalls (WAFs) with SQL injection detection rules tailored to GroupSession's traffic patterns. 8. Maintain an incident response plan to quickly address any detected exploitation attempts.