SQL Injection Vulnerability in itsourcecode Courier Management System

itsourcecode Courier Management System 1.0 is vulnerable to a SQL injection vulnerability. The vulnerability resides in the /edit_staff.php file and can be exploited by manipulating the ID argument. This allows a remote attacker to inject malicious SQL queries, potentially leading to unauthorized data access, modification, or deletion. The exploit is publicly available, increasing the risk of exploitation. The vulnerability was reported on May 1, 2026, and affects version 1.0 of the Courier Management System.

Attack Chain

1. The attacker identifies the /edit_staff.php endpoint in the Courier Management System 1.0.
2. The attacker crafts a malicious SQL injection payload within the ID parameter of a HTTP GET or POST request.
3. The attacker sends the crafted request to the /edit_staff.php endpoint.
4. The application fails to properly sanitize the ID parameter, allowing the SQL injection payload to be processed by the database.
5. The injected SQL query is executed against the database, potentially allowing the attacker to bypass authentication or authorization controls.
6. The attacker retrieves sensitive information from the database, such as user credentials, financial records, or other confidential data.
7. The attacker modifies data in the database, potentially altering application behavior or causing data corruption.
8. The attacker gains full control of the database server.

Impact

Successful exploitation of this SQL injection vulnerability could allow attackers to read, modify, or delete sensitive data within the Courier Management System database. This could lead to unauthorized access to customer information, financial data, and other confidential records. Given the public availability of the exploit, organizations using Courier Management System 1.0 are at a high risk of compromise.

Recommendation

• Apply input validation and sanitization to the ID parameter in /edit_staff.php to prevent SQL injection (CVE-2026-7592).
• Deploy the provided Sigma rule to detect potential SQL injection attempts targeting the /edit_staff.php endpoint.
• Implement a web application firewall (WAF) rule to block known SQL injection payloads (CVE-2026-7592).