CVE-2026-1132 is a SQL injection vulnerability identified in Yonyou KSOA version 9.0, located in the HTTP GET parameter handler of the /kmf/edit_folder.jsp endpoint. The vulnerability arises from insufficient input validation or improper sanitization of the 'folderid' parameter, allowing an attacker to inject malicious SQL code. This injection can be performed remotely without authentication or user interaction, enabling attackers to manipulate backend database queries. Potential consequences include unauthorized data disclosure, data modification, or even full compromise of the database depending on the underlying database permissions. The vulnerability has a CVSS 4.0 base score of 6.9, indicating medium severity, with network attack vector, low complexity, and no privileges or user interaction required. The vendor Yonyou has not issued a patch or responded to disclosure requests, increasing the risk exposure. Although no active exploitation has been reported, the public availability of exploit code raises the likelihood of future attacks. The lack of authentication and the direct impact on data confidentiality and integrity make this a significant threat to organizations using this software.

For European organizations using Yonyou KSOA 9.0, this vulnerability could lead to unauthorized access to sensitive business data, manipulation of critical information, and potential disruption of business processes. Given that Yonyou KSOA is an enterprise service-oriented architecture platform widely used in sectors such as finance, manufacturing, and government, exploitation could compromise confidential data or intellectual property. The ability to execute SQL injection remotely without authentication increases the risk of large-scale data breaches or ransomware attacks leveraging stolen data. Additionally, the absence of vendor patches means organizations must rely on internal mitigations, increasing operational burden. The reputational damage and regulatory consequences under GDPR for data breaches could be significant. The medium severity rating suggests moderate but tangible risk, especially for organizations with high data sensitivity or regulatory scrutiny.

Since no official patch is available, European organizations should implement immediate compensating controls. These include: 1) Applying strict input validation and sanitization on the 'folderid' parameter at the web application firewall (WAF) or reverse proxy level to block malicious payloads; 2) Employing parameterized queries or prepared statements in the application code if source code access is possible; 3) Restricting database user permissions to the minimum necessary to limit damage from injection; 4) Monitoring logs for suspicious SQL query patterns or unusual access to /kmf/edit_folder.jsp; 5) Isolating the affected application server from critical network segments to reduce exposure; 6) Conducting regular security assessments and penetration tests focusing on injection flaws; 7) Engaging with Yonyou support channels for updates or patches; 8) Considering alternative software or versions if feasible; 9) Educating developers and administrators about injection risks and secure coding practices; 10) Implementing network-level intrusion detection systems (IDS) to detect exploitation attempts.