CVE-2026-1178 identifies a SQL injection vulnerability in Yonyou KSOA version 9.0, specifically within the HTTP GET parameter handler of the /kmf/select.jsp file. The vulnerability stems from inadequate input validation of the 'folderid' parameter, which attackers can manipulate to inject malicious SQL code. This injection flaw allows remote attackers to execute arbitrary SQL queries on the backend database without requiring authentication or user interaction, thereby potentially exposing sensitive data, modifying or deleting records, or disrupting database availability. The vulnerability has been publicly disclosed with exploit details available, although no known exploits have been reported in the wild yet. The vendor was notified but has not issued any patches or advisories, leaving systems exposed. The CVSS 4.0 score of 6.9 reflects a medium severity, considering the network attack vector, lack of required privileges or user interaction, and limited scope and impact on confidentiality, integrity, and availability. The absence of vendor response and patch availability increases the urgency for organizations to implement compensating controls. The vulnerability affects only version 9.0 of Yonyou KSOA, a business software suite widely used in enterprise environments, particularly in Asia and increasingly in Europe. Attackers exploiting this flaw could gain unauthorized access to sensitive business data or disrupt critical operations by manipulating database contents.

For European organizations, the exploitation of CVE-2026-1178 could lead to significant data breaches involving confidential business information, intellectual property, or personal data protected under GDPR. The integrity of business-critical databases could be compromised, resulting in data manipulation or deletion that disrupts operations and damages trust. Availability impacts may arise if attackers execute destructive queries or cause database failures, leading to downtime and financial losses. Given the remote and unauthenticated nature of the attack, threat actors can exploit this vulnerability at scale, targeting multiple organizations running Yonyou KSOA 9.0. The lack of vendor patches increases the risk exposure period. Industries such as manufacturing, finance, and supply chain management, where Yonyou software is prevalent, are particularly at risk. Additionally, regulatory repercussions and reputational damage could be severe if personal or sensitive data is leaked or altered. The medium severity rating suggests moderate but tangible risks that warrant immediate attention to prevent exploitation.

Since no official patches are currently available from Yonyou, European organizations should implement the following specific mitigations: 1) Deploy Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'folderid' parameter in /kmf/select.jsp requests. 2) Conduct thorough input validation and sanitization on all user-supplied parameters at the application or proxy level to prevent malicious payloads from reaching the database. 3) Restrict database user permissions associated with the KSOA application to the minimum necessary, preventing unauthorized data modification or access. 4) Monitor database logs and application logs for unusual queries or error patterns indicative of injection attempts. 5) Isolate the affected application components within segmented network zones to limit lateral movement in case of compromise. 6) Consider temporary disabling or restricting access to the vulnerable functionality if feasible until a vendor patch is released. 7) Engage with Yonyou support channels persistently to obtain updates or patches. 8) Educate security teams to recognize exploitation indicators and prepare incident response plans tailored to SQL injection attacks on this platform.