CVE-2022-45208 is a medium-severity SQL injection vulnerability identified in Jeecg-boot version 3.4.3, specifically within the /sys/user/putRecycleBin component. Jeecg-boot is an open-source rapid development platform based on Java, commonly used for enterprise applications. The vulnerability arises from improper sanitization or validation of user-supplied input in the affected 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 impacts confidentiality (C:L) by potentially exposing sensitive data through unauthorized database queries but does not affect integrity or availability. The attack complexity is low (AC:L), meaning exploitation does not require advanced skills or conditions. The scope remains unchanged (S:U), indicating the vulnerability affects only the vulnerable component without impacting other system components. No known public exploits have been reported, and no patches are currently linked, suggesting that mitigation may require custom fixes or updates from the Jeecg-boot maintainers. The vulnerability is categorized under CWE-89, which corresponds to SQL injection flaws, a common and critical class of injection vulnerabilities that can lead to data leakage or unauthorized data access if exploited successfully.

For European organizations using Jeecg-boot 3.4.3 in their enterprise applications, this vulnerability poses a risk of unauthorized data exposure through SQL injection attacks. Although the impact is limited to confidentiality and does not affect data integrity or system availability, sensitive user or business data could be accessed by attackers with low privileges. This could lead to privacy violations, regulatory non-compliance (e.g., GDPR), and reputational damage. Given that Jeecg-boot is a development framework, the vulnerability could propagate into multiple applications if the affected component is reused, increasing the attack surface. The lack of known exploits reduces immediate risk, but the low complexity of exploitation means attackers could develop exploits easily once the vulnerability details are public. Additionally, the absence of patches means organizations must proactively identify and remediate the issue to prevent potential data breaches. The impact is particularly relevant for sectors handling sensitive personal or financial data, such as finance, healthcare, and government services within Europe.

European organizations should first identify all instances of Jeecg-boot 3.4.3 in their environments, focusing on applications exposing the /sys/user/putRecycleBin endpoint. Since no official patches are currently linked, organizations should implement input validation and parameterized queries or prepared statements to sanitize all inputs to this endpoint, effectively preventing SQL injection. Conduct thorough code reviews and penetration testing targeting this vulnerability to confirm remediation. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection payloads targeting the vulnerable endpoint as an interim protective measure. Monitor logs for suspicious database query patterns or repeated access attempts to the affected component. Engage with the Jeecg-boot community or vendors for updates or patches and plan timely upgrades once fixes are available. Additionally, enforce the principle of least privilege for user accounts to minimize the impact of compromised credentials, as exploitation requires at least low-level privileges.