CVE-2025-4924: Client Database Management System SQLi Flaw

CVE-2025-4924 Overview

A SQL injection vulnerability has been identified in SourceCodester Client Database Management System version 1.0. This vulnerability affects the /user_void_transaction.php file, where the order_id parameter is not properly sanitized before being used in database queries. The flaw allows remote attackers to inject malicious SQL commands through the vulnerable parameter, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to manipulate database queries, potentially extracting sensitive client data, modifying transaction records, or compromising the entire database through the order_id parameter in /user_void_transaction.php.

Affected Products

• Lerouxyxchire Client Database Management System 1.0
• SourceCodester Client Database Management System 1.0

Discovery Timeline

• May 19, 2025 - CVE-2025-4924 published to NVD
• May 21, 2025 - Last updated in NVD database

Technical Details for CVE-2025-4924

Vulnerability Analysis

This vulnerability is a classic SQL injection flaw (CWE-89) that also falls under the broader category of injection vulnerabilities (CWE-74). The vulnerable endpoint /user_void_transaction.php accepts user-supplied input through the order_id parameter without implementing proper input validation or parameterized queries. When processing transaction void requests, the application directly concatenates user input into SQL statements, creating a direct injection point for malicious payloads.

The vulnerability is exploitable remotely without requiring authentication, making it particularly dangerous for exposed deployments. Successful exploitation could allow attackers to extract sensitive client information, modify or delete transaction records, and potentially escalate to full database compromise depending on the database user privileges.

Root Cause

The root cause of this vulnerability is improper input validation and the use of unsanitized user input in SQL query construction. The order_id parameter value is directly incorporated into database queries without being validated, escaped, or processed through parameterized statements. This allows attackers to break out of the intended query structure and inject arbitrary SQL commands.

Attack Vector

The attack can be launched remotely over the network. An attacker can craft malicious HTTP requests to the /user_void_transaction.php endpoint with specially crafted order_id parameter values containing SQL injection payloads. Since no authentication appears to be required to reach the vulnerable functionality, attackers can directly target this endpoint from any network location that can reach the application.

The vulnerability allows attackers to manipulate the SQL query logic by injecting payloads through the order_id parameter. Common exploitation techniques include UNION-based injection to extract data from other tables, boolean-based blind injection to infer database contents, and time-based blind injection when other methods fail. For detailed technical analysis of this vulnerability, refer to the GitHub Issue Report and VulDB advisory.

Detection Methods for CVE-2025-4924

Indicators of Compromise

• HTTP requests to /user_void_transaction.php containing SQL syntax characters in the order_id parameter such as single quotes, double dashes, UNION keywords, or SQL comment sequences
• Database error messages in application logs indicating syntax errors or unexpected query behavior
• Unusual database queries with UNION SELECT statements, SLEEP() functions, or information_schema references
• Anomalous data access patterns in database audit logs targeting sensitive tables

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block common SQL injection patterns in the order_id parameter
• Deploy application-layer intrusion detection to monitor for SQL injection signatures in HTTP request parameters
• Enable database query logging and alert on suspicious query patterns such as UNION injections or information schema enumeration
• Configure SentinelOne Singularity Platform to monitor for anomalous process behavior and data exfiltration attempts from the web server

Monitoring Recommendations

• Monitor HTTP access logs for repeated requests to /user_void_transaction.php with varying or malformed order_id values
• Enable database slow query and error logging to identify potential injection attempts
• Implement alerting for database user privilege escalation attempts or access to sensitive system tables
• Use SentinelOne's behavioral AI to detect post-exploitation activities such as unauthorized data access or lateral movement

How to Mitigate CVE-2025-4924

Immediate Actions Required

• Restrict access to /user_void_transaction.php through network segmentation or web server access controls
• Implement a web application firewall (WAF) with SQL injection protection rules for the affected endpoint
• Review and audit database user privileges to ensure the application uses least-privilege principles
• Monitor for exploitation attempts while a permanent fix is developed or deployed

Patch Information

As of the last update on May 21, 2025, no official patch has been released by the vendor for this vulnerability. Organizations using SourceCodester Client Database Management System 1.0 should implement the workarounds described below and monitor for vendor updates through SourceCodester. Additional vulnerability details are available through VulDB.

Workarounds

• Implement input validation on the order_id parameter to accept only numeric values
• Use prepared statements with parameterized queries for all database operations
• Deploy a WAF rule to block requests containing SQL injection patterns in the order_id field
• Consider disabling or restricting access to the void transaction functionality until a patch is available

# Example WAF rule to block SQL injection in order_id parameter
# Apache ModSecurity rule configuration
SecRule ARGS:order_id "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection Detected in order_id parameter',\
    severity:CRITICAL"