CVE-2024-7119: Online Payroll Management System SQLi Flaw

CVE-2024-7119 Overview

CVE-2024-7119 is a SQL injection vulnerability in MD-MAFUJUL-HASAN Online-Payroll-Management-System up to version 20230911. The flaw resides in the /employee_viewmore.php script, where the id parameter is passed directly to a SQL query without sanitization. Remote attackers with low-level privileges can manipulate the parameter to execute arbitrary SQL statements against the backend database. The vulnerability is classified under CWE-89. Public exploit details have been disclosed, and the vendor did not respond to disclosure attempts. Because the product uses continuous rolling releases, no fixed version identifier is available.

Critical Impact
Authenticated remote attackers can inject SQL to read, modify, or extract payroll data including employee records and credentials.

Affected Products

MD-MAFUJUL-HASAN Online-Payroll-Management-System up to and including release 2023-09-11
All rolling releases prior to public disclosure
Deployments exposing /employee_viewmore.php to untrusted networks

Discovery Timeline

2024-07-26 - CVE-2024-7119 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-7119

Vulnerability Analysis

The vulnerability exists in the employee_viewmore.php endpoint of the Online-Payroll-Management-System PHP application. The script accepts an id GET parameter used to look up employee records. The application concatenates this parameter directly into a SQL statement without prepared statements or input validation. An attacker submits crafted values in the id argument to alter the query structure. Successful injection can enumerate database schema, extract records from adjacent tables, or bypass application logic. Because the product supports rolling releases without version tagging, defenders cannot rely on a version comparison to determine exposure.

Root Cause

The root cause is improper neutralization of special elements used in an SQL command [CWE-89]. The id parameter reaches the query builder without parameterization, casting, or allowlist validation. Standard SQL injection tokens such as UNION SELECT, OR 1=1, and comment sequences alter the intended query semantics.

Attack Vector

Exploitation occurs over the network against the vulnerable PHP endpoint. The attacker requires low-privilege access to the application to reach the affected script. No user interaction is required. Attack complexity is low and the exploit is publicly available through the referenced GitHub Security Collections and VulDB entry #272450.

No verified proof-of-concept code is reproduced here. Refer to the linked advisories for payload details and reproduction steps.

Detection Methods for CVE-2024-7119

Indicators of Compromise

Web server access logs containing suspicious patterns in the id query parameter of /employee_viewmore.php, such as UNION, SELECT, SLEEP(, --, %27, or 0x hex literals
Unusual database error messages returned by the application layer to remote clients
Outbound queries against information_schema tables originating from the payroll application account
Anomalous read volumes from the payroll database, particularly against employee, credentials, or salary tables

Detection Strategies

Deploy a web application firewall (WAF) rule set that flags SQL keywords, boolean tautologies, and time-based payloads targeting employee_viewmore.php
Enable database query logging and alert on statements referencing multiple tables outside of application-defined query templates
Correlate authenticated session identifiers with request bursts to /employee_viewmore.php containing non-numeric id values

Monitoring Recommendations

Forward web server, application, and database logs to a centralized analytics platform for correlation and long-term retention
Baseline the normal parameter shape for id (numeric only) and alert on deviations
Monitor database process accounts for privilege changes or unusual outbound network activity indicative of exfiltration

How to Mitigate CVE-2024-7119

Immediate Actions Required

Restrict access to the payroll application to trusted networks or VPN users until a fix is applied
Place /employee_viewmore.php behind a WAF policy that blocks SQL injection payloads on the id parameter
Audit database accounts used by the application and revoke unnecessary privileges such as FILE, CREATE, or cross-database SELECT
Review web and database logs for exploitation attempts predating this advisory

Patch Information

The vendor was contacted about this disclosure but did not respond, and no official patch has been released. The project uses continuous rolling releases without version identifiers, so downstream operators must apply source-level remediation. Convert the affected query in employee_viewmore.php to use prepared statements with parameter binding (for example, mysqli::prepare with bind_param('i', $id) or PDO with bindValue(':id', $id, PDO::PARAM_INT)). Cast the id parameter to an integer before it reaches the query builder.

Workarounds

Apply input validation at the reverse proxy to reject non-integer values for the id parameter
Deploy WAF signatures for [CWE-89] payloads targeting the payroll application host
Isolate the application database on a dedicated service account with read-only access limited to required tables
Consider migrating to a maintained payroll application if vendor support cannot be re-established

bash

# Example nginx location rule to enforce integer-only 'id' values
location /employee_viewmore.php {
    if ($arg_id !~ "^[0-9]+$") {
        return 400;
    }
    include fastcgi_params;
    fastcgi_pass php_upstream;
}