CVE-2025-15424 identifies a SQL injection vulnerability in Yonyou KSOA version 9.0, located in the HTTP GET parameter handler of the /worksheet/agent_worksdel.jsp file. The vulnerability arises from improper sanitization of the 'ID' parameter, allowing an attacker to inject malicious SQL commands remotely without requiring authentication or user interaction. This can lead to unauthorized data access, modification, or deletion within the backend database, impacting confidentiality, integrity, and availability. The CVSS 4.0 score of 6.9 reflects a medium severity, considering the attack vector is network-based with low attack complexity and no privileges or user interaction needed, but with limited scope and impact. The vendor has not issued a patch or responded to disclosure, and a public exploit is available, increasing the risk of exploitation. While no active exploitation is currently reported, the presence of a public exploit necessitates proactive defense. The vulnerability affects only version 9.0 of the KSOA product, which is an enterprise resource planning (ERP) solution widely used in certain markets. The lack of vendor response and patch availability complicates remediation, requiring organizations to rely on compensating controls.

For European organizations using Yonyou KSOA 9.0, this vulnerability poses a significant risk to sensitive business data managed within the ERP system. Exploitation can lead to unauthorized data disclosure, data tampering, or denial of service through database manipulation. Given the critical role of ERP systems in financial, operational, and supply chain management, such compromise could disrupt business continuity, cause financial losses, and damage reputation. The remote and unauthenticated nature of the attack vector increases the likelihood of exploitation, especially if the affected system is exposed to the internet or accessible from less secure internal networks. The absence of a vendor patch means organizations must implement alternative mitigations to protect their data and systems. Countries with higher adoption of Yonyou products in sectors like manufacturing, finance, and government are more vulnerable to targeted attacks leveraging this flaw.

1. Deploy Web Application Firewalls (WAFs) with custom rules specifically designed to detect and block SQL injection attempts targeting the 'ID' parameter in /worksheet/agent_worksdel.jsp. 2. Implement strict input validation and sanitization on all user-supplied parameters, especially the 'ID' parameter, to reject or neutralize malicious payloads. 3. Restrict network exposure of the affected KSOA instance by limiting access to trusted internal networks or VPNs, reducing the attack surface. 4. Monitor database query logs and application logs for anomalous or suspicious SQL queries indicative of injection attempts. 5. Conduct regular security assessments and penetration testing focused on SQL injection vulnerabilities. 6. Engage with Yonyou support channels persistently to obtain official patches or guidance. 7. Consider application-layer segmentation or isolation to limit the impact of a potential compromise. 8. Educate IT and security teams about this specific vulnerability and ensure incident response plans include scenarios involving SQL injection attacks on ERP systems.