CVE-2023-43836 in JIZHICMS
Summary
by MITRE • 10/25/2023
There is a SQL injection vulnerability in the Jizhicms 2.4.9 backend, which users can use to obtain database information
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Analysis
by VulDB Data Team • 02/07/2026
The vulnerability identified as CVE-2023-43836 represents a critical SQL injection flaw within the Jizhicms 2.4.9 content management system backend. This vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into database queries. The flaw exists in the administrative interface where malicious actors can manipulate query parameters to inject arbitrary SQL commands, thereby bypassing normal authentication and authorization controls. Such vulnerabilities are particularly dangerous in backend systems as they provide attackers with direct access to underlying database structures and sensitive information stored within the system. The vulnerability manifests when user input is directly concatenated into SQL statements without proper parameterization or escaping mechanisms, creating an attack surface that allows for unauthorized data access, modification, or deletion.
The technical exploitation of this vulnerability follows standard SQL injection attack patterns where attackers can manipulate form fields, URL parameters, or API endpoints to inject malicious SQL payloads. The attack vector typically involves crafting specially formatted input that alters the intended query logic, potentially allowing attackers to extract database schema information, user credentials, or other sensitive data. This type of vulnerability is classified under CWE-89 which specifically addresses SQL injection flaws in software applications. The attack surface is particularly concerning in content management systems where backend access often contains administrative privileges and sensitive operational data. According to ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application and T1071.004 - Application Layer Protocol: DNS, as attackers may use this vulnerability to establish persistence and further compromise the system through database reconnaissance.
The operational impact of CVE-2023-43836 extends beyond simple data theft to encompass complete system compromise and potential data exfiltration. Successful exploitation could enable attackers to access user accounts, modify content, inject malicious code, or even escalate privileges to gain full administrative control over the CMS. The vulnerability affects the integrity and confidentiality of the entire system as it provides unauthorized access to database information that may include user credentials, session tokens, and application configuration details. Organizations using Jizhicms 2.4.9 are at risk of data breaches, regulatory compliance violations, and reputational damage if this vulnerability remains unpatched. The attack complexity is relatively low as it requires minimal technical skill to exploit, making it attractive to both skilled and less experienced threat actors. Furthermore, the vulnerability may enable attackers to establish persistent access through database backdoors or credential theft, creating long-term security risks for affected organizations.
Mitigation strategies for CVE-2023-43836 must include immediate patching of the Jizhicms 2.4.9 software to the latest version that addresses the SQL injection vulnerability. Organizations should implement proper input validation and parameterized queries throughout the application code to prevent similar vulnerabilities from occurring in the future. Database access controls should be strictly enforced with least privilege principles, ensuring that application accounts have minimal necessary permissions. Network segmentation and monitoring solutions should be deployed to detect anomalous database access patterns that may indicate exploitation attempts. Regular security assessments and penetration testing should be conducted to identify and remediate similar vulnerabilities across the entire application stack. Additionally, implementing web application firewalls and input sanitization mechanisms can provide additional layers of protection against SQL injection attacks. Organizations should also establish incident response procedures specifically designed to handle database compromise scenarios and ensure proper logging and audit trails are maintained for forensic analysis purposes.