CVE-2026-1132 is a SQL injection vulnerability identified in Yonyou KSOA version 9.0, specifically within the HTTP GET parameter handler of the /kmf/edit_folder.jsp endpoint. The vulnerability arises from improper sanitization of the 'folderid' parameter, allowing attackers to inject malicious SQL queries remotely without requiring authentication or user interaction. This flaw enables attackers to manipulate backend database queries, potentially leading to unauthorized data disclosure, data modification, or deletion. The vulnerability has a CVSS 4.0 base score of 6.9, indicating medium severity, with network attack vector, low complexity, no privileges or user interaction needed, and partial impact on confidentiality, integrity, and availability. Although an exploit has been publicly disclosed, no active exploitation in the wild has been confirmed. The vendor Yonyou has not responded to disclosure attempts, and no official patches or mitigations have been released. This leaves affected systems exposed to potential exploitation, especially in environments where Yonyou KSOA 9.0 is deployed. The vulnerability highlights the risks of insufficient input validation in web applications and the importance of timely vendor response and patching. Organizations should consider compensating controls such as web application firewalls and strict network access controls to mitigate risk until a patch is available.

For European organizations, exploitation of this vulnerability could lead to significant data breaches, unauthorized data manipulation, or service disruption. Given that Yonyou KSOA is an enterprise software product, affected systems may contain sensitive business data or critical operational information. The ability to execute SQL injection remotely without authentication increases the risk of widespread compromise. Confidentiality could be compromised through unauthorized data extraction, integrity affected by unauthorized data changes, and availability impacted if attackers delete or corrupt data. This could result in financial losses, regulatory penalties under GDPR due to data breaches, and reputational damage. Organizations in sectors such as finance, manufacturing, and government that rely on Yonyou KSOA may face operational disruptions. The lack of vendor response and patches exacerbates the risk, necessitating immediate mitigation efforts. The medium severity rating suggests a moderate but tangible threat that should not be ignored, especially in high-value target environments.

1. Implement strict input validation and sanitization on all user-supplied parameters, particularly the 'folderid' parameter, to prevent injection of malicious SQL code. 2. Deploy a web application firewall (WAF) configured to detect and block SQL injection attempts targeting the /kmf/edit_folder.jsp endpoint. 3. Restrict network access to the affected application to trusted IP ranges and segment the network to limit exposure. 4. Monitor application logs and database queries for unusual activity indicative of exploitation attempts. 5. Conduct regular security assessments and penetration testing focusing on injection vulnerabilities. 6. Engage with Yonyou or trusted third parties to obtain patches or workarounds as soon as they become available. 7. Consider temporary disabling or restricting access to the vulnerable functionality if feasible. 8. Educate developers and administrators about secure coding practices and the risks of unsanitized inputs. 9. Maintain up-to-date backups to enable recovery in case of data corruption or deletion. 10. Establish an incident response plan tailored to SQL injection incidents to minimize impact.