CVE-2023-25330 in Plus
Summary
by MITRE • 04/05/2023
A SQL injection vulnerability in Mybatis plus below 3.5.3.1 allows remote attackers to execute arbitrary SQL commands via the tenant ID valuer. NOTE: the vendor's position is that this can only occur in a misconfigured application; the documentation discusses how to develop applications that avoid SQL injection.
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Analysis
by VulDB Data Team • 07/06/2025
The vulnerability identified as CVE-2023-25330 represents a critical SQL injection flaw within MyBatis Plus framework versions prior to 3.5.3.1. This vulnerability specifically targets the tenant ID value handling mechanism within multi-tenant applications that utilize MyBatis Plus for database operations. The flaw arises when applications fail to properly sanitize or parameterize tenant identifiers passed to database queries, creating an avenue for malicious actors to inject arbitrary SQL commands. The vulnerability's exploitation potential is significant as it allows remote attackers to bypass normal authentication mechanisms and directly manipulate database operations through the tenant ID parameter.
The technical implementation of this vulnerability stems from improper input validation and query construction practices within the MyBatis Plus library. When applications process tenant IDs without adequate sanitization, the framework may concatenate user-supplied values directly into SQL query strings rather than utilizing parameterized queries. This pattern violates fundamental security principles and creates a direct path for SQL injection attacks. The vulnerability aligns with CWE-89 which categorizes SQL injection as a persistent weakness in software systems. The attack vector is particularly concerning because it leverages legitimate application functionality rather than exploiting system-level flaws, making detection more challenging for security monitoring systems.
The operational impact of this vulnerability extends beyond simple data theft or modification. Attackers who successfully exploit this vulnerability can potentially gain unauthorized access to sensitive tenant data, modify database schemas, execute administrative commands, or even establish persistent backdoors within multi-tenant environments. In cloud-based applications or SaaS platforms utilizing MyBatis Plus, this vulnerability could enable attackers to access data belonging to multiple customers within the same system. The remote exploit capability means that attackers do not require physical access to the system or insider knowledge of internal network structures. This vulnerability directly impacts the principle of least privilege and can compromise the isolation guarantees that multi-tenant architectures are designed to provide.
Organizations should implement immediate mitigation strategies including upgrading to MyBatis Plus version 3.5.3.1 or later, which includes enhanced parameterization and input validation mechanisms. Security teams must conduct comprehensive code reviews to identify all instances where tenant IDs are processed within database queries, ensuring that all user inputs are properly parameterized. The remediation process should also include implementing proper input validation at multiple layers including application, database, and network boundaries. Additionally, organizations should consider implementing database activity monitoring and intrusion detection systems to identify potential exploitation attempts. The vulnerability's classification aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, and T1046 which addresses network service discovery. Proper security documentation and developer training are essential to prevent similar issues in future application development cycles, as this vulnerability primarily results from insecure coding practices rather than fundamental framework flaws.