Overview
A critical SQL injection vulnerability, identified as CVE-2025-65877, has been discovered in Lvzhou CMS. This flaw affects versions prior to commit c4ea0eb9cab5f6739b2c87e77d9ef304017ed615 (dated 2025-09-22). Exploitation of this vulnerability could allow attackers to execute arbitrary SQL queries, potentially leading to sensitive data exposure, modification, or even complete system compromise.
Technical Details
The vulnerability resides within the com.wanli.lvzhoucms.service.ContentService#findPage method. The ‘title’ parameter is directly concatenated into a dynamic SQL query without proper sanitization or the use of prepared statements. This insecure practice allows an attacker to inject malicious SQL code through the ‘title’ parameter. When the application executes the constructed SQL query, the injected code will be executed along with the intended query logic.
Specifically, the vulnerable code constructs the SQL query in the following insecure manner (example illustration):
String title = request.getParameter("title");
String sql = "SELECT * FROM content WHERE title LIKE '%" + title + "%'"; // VULNERABLE!
// Execute SQL query
An attacker could inject code such as ' OR 1=1 -- into the `title` parameter, potentially bypassing authentication or retrieving unauthorized data.
CVSS Analysis
Currently, the CVSS score is not available (N/A). However, due to the potential for complete database compromise, this vulnerability should be considered a high severity issue. A formal CVSS score is expected to be assigned as analysis progresses.
Possible Impact
Successful exploitation of this SQL injection vulnerability can have severe consequences:
- Data Breach: Attackers can access sensitive data stored in the database, including user credentials, personal information, and confidential business data.
- Data Manipulation: Attackers can modify or delete data in the database, leading to data corruption or denial of service.
- Authentication Bypass: Attackers can bypass authentication mechanisms and gain unauthorized access to the system.
- Code Execution: In certain scenarios, attackers might be able to execute arbitrary code on the server, leading to complete system compromise.
Mitigation and Patch Steps
The primary mitigation strategy is to update Lvzhou CMS to a version containing the fix for CVE-2025-65877. Specifically, ensure your system has incorporated commit c4ea0eb9cab5f6739b2c87e77d9ef304017ed615 or later.
If updating is not immediately feasible, consider the following temporary workarounds:
- Input Validation: Implement strict input validation on the ‘title’ parameter to prevent the injection of malicious SQL code. This is a temporary fix and not a replacement for patching.
- Web Application Firewall (WAF): Deploy a WAF to detect and block SQL injection attempts. Configure the WAF with rules specifically designed to protect against SQL injection attacks.
Important: Always prioritize patching your systems with the official fix from the vendor as soon as it becomes available.
