CVE-2025-4924: Client Database System SQLi Vulnerability

CVE-2025-4924 Overview

CVE-2025-4924 is a SQL injection vulnerability in SourceCodester Client Database Management System 1.0, developed by lerouxyxchire. The flaw resides in the /user_void_transaction.php script, where the order_id parameter is passed to a database query without proper sanitization. Remote attackers can manipulate the parameter to inject arbitrary SQL statements. The exploit details have been disclosed publicly, increasing the likelihood of opportunistic attacks against exposed deployments. The vulnerability is tracked under [CWE-89] (SQL Injection) and [CWE-74] (Improper Neutralization of Special Elements in Output).

Critical Impact
Unauthenticated remote attackers can inject SQL into the order_id parameter of /user_void_transaction.php, potentially exposing or modifying records in the client database.

Affected Products

Lerouxyxchire Client Database Management System 1.0
Component: /user_void_transaction.php
CPE: cpe:2.3:a:lerouxyxchire:client_database_management_system:1.0

Discovery Timeline

2025-05-19 - CVE-2025-4924 published to NVD
2025-05-21 - Last updated in NVD database

Technical Details for CVE-2025-4924

Vulnerability Analysis

The vulnerability exists in the transaction void workflow of the Client Database Management System. The /user_void_transaction.php script accepts an order_id parameter from the HTTP request and incorporates it directly into a SQL query. Because the value is not parameterized or escaped, attackers can append SQL syntax to alter the query's logic.

The attack requires no authentication and no user interaction. An attacker only needs network reachability to the application to send a crafted HTTP request. Public disclosure of the exploit pattern lowers the barrier for attackers seeking targets running this PHP-based application.

The defect aligns with [CWE-89] Improper Neutralization of Special Elements used in an SQL Command. Successful exploitation can lead to extraction of sensitive client records, modification of stored transaction data, or in some configurations, escalation toward command execution through database features.

Root Cause

The root cause is direct concatenation of untrusted input into a SQL statement. The application does not use prepared statements or input validation on the order_id argument before passing it to the database driver. Any attacker-controlled metacharacters reach the SQL parser intact.

Attack Vector

The attack vector is network-based. An attacker sends an HTTP request to /user_void_transaction.php with a malicious order_id value. Typical exploitation patterns include boolean-based blind injection, UNION-based extraction, and time-based blind probes against the underlying MySQL or MariaDB backend.

No verified exploit code is included in the NVD entry. The vulnerability mechanism is documented in the public GitHub issue tracking CVE-2025-4924 and the VulDB entry #309486.

Detection Methods for CVE-2025-4924

Indicators of Compromise

HTTP requests to /user_void_transaction.php containing SQL metacharacters such as single quotes, UNION SELECT, OR 1=1, or SLEEP( within the order_id parameter.
Web server access logs showing repeated requests to the void transaction endpoint from a single source within a short window.
Unusual database error messages or query latency correlating with requests to the affected script.

Detection Strategies

Deploy web application firewall signatures targeting SQL injection patterns in the order_id query string and POST body.
Inspect PHP application logs for malformed order_id values that do not match the expected integer format.
Correlate web request telemetry with database audit logs to identify queries containing tautologies, comments, or stacked statements.

Monitoring Recommendations

Forward web server, PHP, and database logs to a centralized analytics platform for cross-source correlation.
Alert on outbound data transfers from the database host that exceed normal baselines, which can indicate bulk extraction.
Track authentication anomalies against database accounts used by the application to detect credential abuse following injection.

How to Mitigate CVE-2025-4924

Immediate Actions Required

Restrict network exposure of the Client Database Management System to trusted networks or VPN-protected segments.
Place the application behind a web application firewall configured to block SQL injection payloads on the order_id parameter.
Audit recent web and database logs for evidence of exploitation targeting /user_void_transaction.php.
Rotate database credentials used by the application if compromise is suspected.

Patch Information

No official vendor patch is referenced in the NVD entry at the time of publication. Administrators should monitor the SourceCodester project page and the GitHub CVE issue for updates. In the absence of a vendor fix, source code modifications to use parameterized queries are required.

Workarounds

Modify /user_void_transaction.php to use prepared statements with bound parameters via PDO or mysqli_prepare.
Enforce server-side validation that the order_id value is a positive integer before reaching any database call.
Apply least-privilege principles to the application's database account, removing rights to DROP, ALTER, and access to system tables.
Consider taking the application offline if it is not business-critical until a vendor patch is published.

bash

# Example WAF rule (ModSecurity) blocking SQLi in order_id
SecRule ARGS:order_id "@rx (?i)(union(\s)+select|or\s+1=1|sleep\(|--|;)" \
    "id:1004924,phase:2,deny,status:403,msg:'CVE-2025-4924 SQLi attempt on order_id'"