CVE-2025-15436 is a SQL injection vulnerability identified in Yonyou KSOA version 9.0, specifically within the /worksheet/work_edit.jsp component. The vulnerability arises from improper sanitization of the 'Report' parameter, which allows an attacker to inject malicious SQL commands remotely without requiring authentication or user interaction. This flaw can be exploited to manipulate backend database queries, potentially leading to unauthorized data access, modification, or partial disruption of service. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) indicates network attack vector, low attack complexity, no privileges or user interaction needed, and partial impacts on confidentiality, integrity, and availability. Although no known exploits have been observed in the wild, the vulnerability has been publicly disclosed and the vendor has not issued a patch or response, increasing the risk of exploitation. The lack of vendor response also suggests that organizations must proactively implement mitigations. SQL injection vulnerabilities are critical because they can lead to data breaches, unauthorized data manipulation, and potential lateral movement within networks. The affected product, Yonyou KSOA, is an enterprise resource planning (ERP) system widely used in various industries, making this vulnerability a significant concern for organizations relying on this software for business operations.

For European organizations, exploitation of this SQL injection vulnerability could result in unauthorized access to sensitive business data, including financial records, employee information, and operational details stored within the Yonyou KSOA system. This could lead to data breaches violating GDPR and other data protection regulations, resulting in legal penalties and reputational damage. Integrity impacts could allow attackers to alter critical business data, potentially disrupting operations or causing erroneous business decisions. Availability impacts, although partial, could degrade system performance or cause intermittent outages, affecting business continuity. Since the vulnerability requires no authentication or user interaction, attackers can remotely exploit it at scale, increasing the risk of widespread compromise. Industries such as manufacturing, finance, and supply chain management, which commonly use ERP systems like Yonyou KSOA, are particularly at risk. The absence of a vendor patch means organizations must rely on compensating controls to reduce exposure until an official fix is released.

1. Implement strict input validation and sanitization on all user-supplied parameters, especially the 'Report' parameter in /worksheet/work_edit.jsp, to prevent malicious SQL code injection. 2. Deploy a Web Application Firewall (WAF) with updated rules to detect and block SQL injection attempts targeting Yonyou KSOA endpoints. 3. Conduct thorough code reviews and security testing of the affected application components to identify and remediate injection points. 4. Monitor database logs and application logs for unusual query patterns or errors indicative of SQL injection attempts. 5. Restrict database user permissions used by the application to the minimum necessary to limit the impact of a successful injection. 6. Segment and isolate critical ERP infrastructure within the network to reduce lateral movement opportunities. 7. Maintain regular backups of critical data to enable recovery in case of data tampering or loss. 8. Engage with Yonyou support channels and security advisories for updates or patches, and consider applying any unofficial workarounds or mitigations recommended by the security community. 9. Educate IT and security teams about this vulnerability to ensure rapid detection and response to potential exploitation attempts.