CVE-2022-45210 is a SQL injection vulnerability identified in Jeecg-boot version 3.4.3, specifically within the /sys/user/deleteRecycleBin component. Jeecg-boot is an open-source rapid development platform based on Java that is used to accelerate enterprise application development. The vulnerability arises from improper sanitization or validation of user-supplied input in the deleteRecycleBin endpoint, allowing an attacker with at least low-level privileges (PR:L) to inject malicious SQL code. This injection can be performed remotely over the network (AV:N) without requiring user interaction (UI:N). The vulnerability does not require elevated privileges beyond low privileges, which means authenticated users with limited access can exploit it. The CVSS 3.1 base score is 4.3, indicating a medium severity, with the impact primarily on confidentiality (C:L), while integrity and availability remain unaffected (I:N, A:N). The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), a common and critical class of injection flaws. No public exploits have been reported in the wild, and no official patches or vendor advisories are currently linked. The vulnerability's scope is limited to the affected component and version, and it does not escalate privileges or cause denial of service directly. However, successful exploitation could allow an attacker to extract sensitive data from the backend database, potentially exposing user information or other confidential data stored in the recycle bin feature of the system.

For European organizations using Jeecg-boot 3.4.3 in their enterprise applications, this vulnerability poses a risk of unauthorized data disclosure through SQL injection attacks. Although the impact on integrity and availability is minimal, the confidentiality breach could lead to exposure of sensitive user data or internal system information. This can result in compliance issues, especially under GDPR regulations, which mandate strict protection of personal data. Organizations in sectors such as finance, healthcare, and government, where Jeecg-boot might be used for internal tools or customer-facing applications, could face reputational damage and potential regulatory fines if exploited. The requirement for low-level privileges means that insider threats or compromised user accounts could be leveraged to exploit this vulnerability. The lack of known exploits in the wild reduces immediate risk, but the presence of a known vulnerability with public disclosure increases the likelihood of future exploitation attempts. Given the medium severity and the nature of the vulnerability, organizations should prioritize identifying affected systems and mitigating the risk to prevent data leakage.

1. Immediate mitigation should focus on restricting access to the /sys/user/deleteRecycleBin endpoint to only trusted and necessary users, implementing strict access controls and monitoring. 2. Conduct a thorough audit of all instances of Jeecg-boot 3.4.3 within the organization to identify affected deployments. 3. Since no official patch is currently linked, organizations should consider applying manual input validation and parameterized queries or prepared statements in the affected component to prevent SQL injection. 4. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting this endpoint. 5. Monitor logs for unusual database query patterns or repeated access attempts to the vulnerable endpoint. 6. Educate developers and administrators about secure coding practices to avoid injection flaws in future development. 7. Plan for an upgrade to a patched version of Jeecg-boot once available or consider alternative frameworks if timely patching is not feasible. 8. Implement multi-factor authentication and least privilege principles to reduce the risk of exploitation by low-privilege users.