CVE-2022-45206 is a critical SQL injection vulnerability identified in Jeecg-boot version 3.4.3, specifically within the /sys/duplicate/check component. Jeecg-boot is an open-source rapid development platform based on Java, commonly used for enterprise applications. The vulnerability arises due to improper sanitization or validation of user-supplied input in the SQL queries executed by this component, allowing an attacker to inject malicious SQL code. This flaw corresponds to CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), which can lead to unauthorized database access or manipulation. The CVSS v3.1 base score of 9.8 reflects the severity, indicating that the vulnerability is remotely exploitable over the network without any authentication or user interaction (AV:N/AC:L/PR:N/UI:N). Successful exploitation can compromise confidentiality, integrity, and availability of the backend database, potentially allowing attackers to extract sensitive data, modify or delete records, or disrupt application functionality. Although no known exploits have been reported in the wild yet, the critical nature and ease of exploitation make this vulnerability a high-risk threat for organizations using Jeecg-boot 3.4.3. The lack of vendor or product-specific information in the provided data suggests that the vulnerability is tied directly to the Jeecg-boot platform itself rather than a third-party component. Since Jeecg-boot is often deployed in enterprise environments for internal business applications, the impact of exploitation could be significant, especially if the affected systems handle sensitive or regulated data.

For European organizations, the impact of CVE-2022-45206 can be substantial. Exploitation could lead to unauthorized access to confidential business data, including personal data protected under GDPR, intellectual property, or financial records. This can result in data breaches, regulatory penalties, reputational damage, and operational disruption. The integrity of business-critical applications could be compromised, leading to incorrect data processing or loss of trust in automated systems. Availability impacts could manifest as denial of service if attackers manipulate or corrupt database contents. Given the critical CVSS score and the fact that no authentication or user interaction is required, attackers can remotely exploit this vulnerability with relative ease, increasing the risk of widespread attacks. European organizations relying on Jeecg-boot for internal or customer-facing applications should consider this a high-priority threat, especially those in sectors like finance, healthcare, manufacturing, and public administration where data sensitivity and regulatory compliance are paramount.

1. Immediate patching: Organizations should upgrade Jeecg-boot to a version where this vulnerability is fixed. If no official patch is available, apply vendor or community recommended workarounds or mitigations. 2. Input validation and parameterized queries: Review and harden the /sys/duplicate/check component to ensure all user inputs are properly sanitized and that SQL queries use prepared statements or parameterized queries to prevent injection. 3. Web application firewall (WAF): Deploy or update WAF rules to detect and block SQL injection attempts targeting the vulnerable endpoint. 4. Network segmentation: Restrict access to the Jeecg-boot application servers to trusted internal networks or VPNs to reduce exposure. 5. Monitoring and logging: Enhance logging around the /sys/duplicate/check endpoint and database queries to detect anomalous or suspicious activities indicative of exploitation attempts. 6. Conduct security assessments: Perform code reviews and penetration testing focusing on SQL injection vulnerabilities in Jeecg-boot deployments. 7. Incident response readiness: Prepare to respond quickly to any signs of compromise by having backups and recovery plans in place for affected databases and applications.