CVE-2024-6903: Jkev Record Management System SQLi Flaw

CVE-2024-6903 Overview

CVE-2024-6903 is a SQL injection vulnerability in SourceCodester Record Management System 1.0, developed by Jkev. The flaw resides in the sort1_user.php script, where the position parameter is passed directly into a database query without proper sanitization [CWE-89]. Authenticated remote attackers can manipulate this parameter to inject arbitrary SQL statements. The exploit has been publicly disclosed under identifier VDB-271928, increasing the likelihood of opportunistic attacks against exposed installations.

Critical Impact
Attackers with low-privilege access can exfiltrate, modify, or delete database records by injecting SQL statements through the position parameter in sort1_user.php.

Affected Products

Jkev Record Management System 1.0
SourceCodester Record Management System (identical codebase)
Deployments referencing sort1_user.php from the same source tree

Discovery Timeline

2024-07-19 - CVE-2024-6903 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-6903

Vulnerability Analysis

The vulnerability affects the sorting functionality exposed by sort1_user.php in the Record Management System web application. The script accepts a position argument from the client and concatenates it into an SQL query executed against the backing database. Because the input is not validated, escaped, or bound as a parameter, attackers can append additional SQL syntax to alter query semantics.

Exploitation requires network access to the application and low-level authenticated privileges. Successful injection can disclose data from arbitrary tables, tamper with stored records, or, depending on database configuration, enable further pivoting inside the database engine. The vulnerability is tracked under CWE-89: Improper Neutralization of Special Elements used in an SQL Command.

EPSS data places the current exploitation probability at 0.545% (42.8th percentile), reflecting a modest but non-trivial likelihood of opportunistic scanning.

Root Cause

The root cause is direct concatenation of user-controlled input into an SQL statement inside sort1_user.php. The application does not use prepared statements or parameterized queries, and it does not apply an allowlist against the position argument, which should be limited to known column names or sort keys.

Attack Vector

Attackers reach the vulnerable endpoint over the network by submitting a crafted HTTP request that includes a malicious position value. Because the application requires authentication, any account with access to the sorting feature can trigger the flaw. The public disclosure at GitHub Record Management System PoC documents the injection payload structure.

No verified sanitized exploit code is available. Refer to the VulDB entry #271928 for additional technical context.

Detection Methods for CVE-2024-6903

Indicators of Compromise

HTTP requests to sort1_user.php containing SQL metacharacters such as single quotes, UNION, SELECT, SLEEP(, or comment sequences in the position parameter
Web server access logs showing anomalous or unusually long position values
Unexpected database errors or query timeouts correlated with requests to the sorting endpoint
Outbound database connections or data volumes that diverge from normal application baselines

Detection Strategies

Deploy web application firewall (WAF) signatures that flag SQL keywords appearing in the position query parameter
Enable database query logging and alert on syntax errors originating from the Record Management System service account
Perform authenticated dynamic application scanning against sort1_user.php to confirm injection points

Monitoring Recommendations

Baseline expected HTTP parameter values for sort1_user.php and alert on deviations
Monitor authentication logs for credential reuse or brute-force activity that could precede exploitation
Correlate web request telemetry with database audit logs to identify injection attempts followed by unusual SELECT or UNION queries

How to Mitigate CVE-2024-6903

Immediate Actions Required

Restrict network access to the Record Management System to trusted users and internal networks only
Rotate credentials for any accounts capable of reaching sort1_user.php while remediation is planned
Deploy WAF rules to block SQL metacharacters in the position parameter until a code fix is available

Patch Information

No vendor patch has been published for Jkev Record Management System 1.0. Operators should replace the vulnerable query with a parameterized statement or apply a strict allowlist for the position argument, limiting it to known sortable column identifiers. Consult the VulDB advisory for tracking updates.

Workarounds

Implement server-side allowlist validation for position, permitting only expected column names
Rewrite the affected query in sort1_user.php to use prepared statements with bound parameters
Apply the principle of least privilege to the database account used by the application, removing DDL and cross-database read permissions
Consider decommissioning the application if it is not business-critical, given the absence of an official patch

bash

# Example nginx rule to block obvious SQL injection patterns targeting the vulnerable endpoint
location /sort1_user.php {
    if ($arg_position ~* "(union|select|sleep|--|;|/\*|\bor\b\s+1=1)") {
        return 403;
    }
}