CVE-2025-15434 identifies a SQL injection vulnerability in the Yonyou KSOA 9.0 enterprise software, specifically within the /kp/PrintZPYG.jsp endpoint. The vulnerability arises from improper sanitization of the 'zpjhid' parameter, which an attacker can manipulate to inject malicious SQL code. This injection flaw allows remote attackers to execute arbitrary SQL commands on the backend database without requiring authentication or user interaction. The vulnerability is remotely exploitable over the network, increasing its attack surface. The CVSS 4.0 base score is 6.9, reflecting medium severity due to the lack of required privileges but presence of partial impact on confidentiality, integrity, and availability. The vendor has not responded to vulnerability disclosure, and no official patches are available, although a public exploit has been released, raising the urgency for defensive measures. The vulnerability could lead to unauthorized data access, data modification, or denial of service depending on the attacker's payload. The affected product, Yonyou KSOA, is an ERP system widely used in certain industries, making this vulnerability significant for organizations relying on this software for business operations.

For European organizations, exploitation of this vulnerability could result in unauthorized access to sensitive business data, including financial records, customer information, and operational details stored within Yonyou KSOA databases. Data integrity could be compromised by malicious alterations, potentially disrupting business processes or causing financial inaccuracies. Availability impacts could arise if attackers execute commands that degrade or crash database services. Given the remote and unauthenticated nature of the exploit, attackers can launch attacks at scale, increasing the risk of widespread compromise. Organizations in sectors such as manufacturing, finance, and supply chain management that utilize Yonyou KSOA may face operational disruptions and reputational damage. The lack of vendor response and patch availability heightens the risk, as organizations must rely on interim mitigations. Additionally, compliance with European data protection regulations (e.g., GDPR) could be jeopardized if personal or sensitive data is exposed or altered.

1. Implement strict input validation and sanitization on all parameters, especially 'zpjhid', to prevent SQL injection. 2. Deploy a Web Application Firewall (WAF) with custom rules to detect and block SQL injection attempts targeting the vulnerable endpoint. 3. Monitor database logs and application logs for unusual queries or error patterns indicative of injection attempts. 4. Restrict database user permissions to the minimum necessary to limit the impact of potential injection exploits. 5. Isolate the affected application components in segmented network zones to reduce lateral movement risk. 6. Conduct regular security assessments and penetration tests focusing on injection vulnerabilities. 7. Engage with Yonyou support channels for updates or patches and apply them promptly once available. 8. Consider temporary disabling or restricting access to the vulnerable functionality if feasible until a patch is released. 9. Educate IT and security teams about the vulnerability and signs of exploitation to improve detection and response.