CVE-2025-15434 identifies a SQL injection vulnerability in Yonyou KSOA version 9.0, located in the /kp/PrintZPYG.jsp file. The vulnerability arises from improper sanitization of the 'zpjhid' parameter, which allows attackers to inject malicious SQL code remotely without requiring authentication or user interaction. This can lead to unauthorized access to backend databases, enabling attackers to read, modify, or delete sensitive data. The vulnerability has been publicly disclosed with exploit code available, increasing the likelihood of exploitation. The vendor has not issued a patch or responded to the disclosure, leaving affected systems exposed. The CVSS 4.0 score of 6.9 reflects a medium severity level, considering the network attack vector, low complexity, and no privileges or user interaction needed, but with limited impact on confidentiality, integrity, and availability. This vulnerability is critical for organizations relying on Yonyou KSOA 9.0 for enterprise resource planning and business operations, as exploitation could compromise sensitive business data and disrupt services.

For European organizations, exploitation of this SQL injection vulnerability could lead to unauthorized disclosure of sensitive corporate data, including financial records, customer information, and intellectual property. Data integrity could be compromised through unauthorized modification or deletion of records, potentially disrupting business processes and decision-making. Availability impacts are less severe but possible if attackers manipulate database operations to cause application errors or downtime. Given that Yonyou KSOA is used in various industries including manufacturing, finance, and government sectors, the breach could have cascading effects on supply chains and regulatory compliance. The public availability of exploit code increases the risk of opportunistic attacks, especially against organizations that have not applied mitigations. The lack of vendor response and patches further exacerbates the risk, making proactive defense essential. European organizations may also face reputational damage and regulatory penalties under GDPR if personal data is exposed.

1. Implement immediate input validation and sanitization for the 'zpjhid' parameter to prevent SQL injection. 2. Deploy a Web Application Firewall (WAF) with rules specifically targeting SQL injection patterns against the affected endpoint. 3. Conduct thorough code reviews and security testing of the affected JSP file and related components to identify and remediate similar vulnerabilities. 4. Monitor logs and network traffic for unusual database queries or access patterns indicative of exploitation attempts. 5. Isolate or restrict access to the affected application modules to trusted networks or VPNs to reduce exposure. 6. Engage with Yonyou support channels to demand a security patch or official guidance. 7. Prepare incident response plans to quickly address any detected exploitation. 8. Consider application-layer encryption of sensitive data to limit impact if database access is gained. 9. Regularly update and patch all other components of the IT environment to reduce overall attack surface.