CVE-2025-15436 is a SQL injection vulnerability identified in Yonyou KSOA version 9.0, a widely used enterprise resource planning (ERP) and office automation software suite. The vulnerability resides in the /worksheet/work_edit.jsp file, where the Report parameter is improperly sanitized, allowing an attacker to inject malicious SQL code. This injection flaw enables remote attackers to manipulate backend SQL queries without requiring authentication or user interaction, potentially leading to unauthorized data retrieval, modification, or deletion. The vulnerability has been publicly disclosed, but no official patch or vendor response has been provided as of the publication date. The CVSS 4.0 base score of 6.9 reflects a medium severity level, considering the ease of exploitation (network accessible, no privileges or user interaction needed) but limited scope of impact (partial confidentiality, integrity, and availability impact). The lack of vendor response increases risk, as unpatched systems remain exposed. Exploitation could lead to data breaches, unauthorized data manipulation, or disruption of business processes relying on the affected database. Given Yonyou's significant market penetration in China and parts of Asia, this vulnerability poses a notable risk to organizations using KSOA 9.0 in those regions.

The potential impact of CVE-2025-15436 is significant for organizations using Yonyou KSOA 9.0. Successful exploitation can lead to unauthorized access to sensitive business data, data corruption, or deletion, which can disrupt critical business operations. Confidentiality breaches could expose proprietary or personal information, leading to regulatory compliance issues and reputational damage. Integrity violations may result in incorrect business decisions based on tampered data. Availability impacts, while limited, could arise if injected queries cause database errors or crashes. Since the vulnerability requires no authentication and can be exploited remotely, attackers can launch attacks from anywhere, increasing the threat surface. The absence of vendor patches and public exploit disclosures heighten the urgency for organizations to implement mitigations. Industries relying heavily on Yonyou KSOA, such as manufacturing, finance, and government sectors in affected regions, face elevated risks of targeted attacks and data compromise.

To mitigate CVE-2025-15436, organizations should immediately implement input validation and sanitization for the Report parameter and any other user-controllable inputs in the /worksheet/work_edit.jsp file. Employing parameterized queries or prepared statements is critical to prevent SQL injection attacks. Network-level protections such as web application firewalls (WAFs) should be configured to detect and block SQL injection patterns targeting this endpoint. Continuous monitoring and logging of database queries can help identify suspicious activities indicative of exploitation attempts. Organizations should isolate the affected system segments and restrict access to trusted users and networks where possible. Since no official patch is available, engaging with Yonyou for updates or workarounds is essential. Additionally, conducting regular security assessments and penetration testing focused on injection flaws will help identify and remediate similar vulnerabilities proactively.