CVE-2025-15436 identifies a SQL injection vulnerability in Yonyou KSOA version 9.0, located in the /worksheet/work_edit.jsp endpoint, specifically through the manipulation of the 'Report' parameter. This vulnerability allows an attacker to inject malicious SQL code remotely without requiring authentication or user interaction. The injection flaw can lead to unauthorized access to sensitive data, data modification, or potentially full compromise of the backend database. The CVSS 4.0 score of 6.9 reflects a medium severity, considering the vulnerability is remotely exploitable with low attack complexity and no privileges or user interaction needed, but with limited impact on confidentiality, integrity, and availability (each rated low). The vendor was contacted but has not provided a patch or mitigation guidance, and while public exploit code has been disclosed, there are no confirmed reports of exploitation in the wild. Yonyou KSOA is an enterprise resource planning (ERP) system widely used in various industries, including manufacturing and finance, which makes this vulnerability a significant concern for organizations relying on this software. The lack of a patch increases the urgency for organizations to implement compensating controls to prevent exploitation.

For European organizations, this vulnerability poses a risk of unauthorized data access and potential data integrity violations, which can lead to financial loss, reputational damage, and regulatory non-compliance, especially under GDPR. Since Yonyou KSOA is used in enterprise environments, exploitation could disrupt business operations by corrupting or exposing critical business data. The remote and unauthenticated nature of the attack vector increases the risk of widespread exploitation if the vulnerable systems are exposed to the internet or poorly segmented networks. The absence of vendor remediation means organizations must rely on internal controls to mitigate risk. Industries such as manufacturing, finance, and supply chain management, which often use ERP systems like Yonyou KSOA, are particularly vulnerable. Additionally, data breaches resulting from this vulnerability could trigger legal and compliance consequences under European data protection laws.

1. Immediately implement strict input validation and sanitization on the 'Report' parameter within the /worksheet/work_edit.jsp endpoint to prevent SQL injection. 2. Deploy a web application firewall (WAF) with custom rules designed to detect and block SQL injection patterns targeting this specific parameter and endpoint. 3. Restrict network access to the Yonyou KSOA application, ensuring it is not directly exposed to the internet; use VPNs or zero-trust network architectures for remote access. 4. Segment the network to isolate the ERP system from other critical infrastructure to limit lateral movement in case of compromise. 5. Monitor database logs and application logs for unusual queries or errors indicative of SQL injection attempts. 6. Prepare an incident response plan specifically addressing potential exploitation of this vulnerability. 7. Engage with Yonyou or third-party security vendors for potential patches or security advisories and consider alternative ERP solutions if remediation is delayed. 8. Conduct regular security assessments and penetration tests focusing on injection vulnerabilities in the ERP environment.