CVE-2026-7076: Courier Management System SQLi Vulnerability

CVE-2026-7076 Overview

A SQL injection vulnerability has been identified in itsourcecode Courier Management System version 1.0. The vulnerability exists in the /edit_branch.php file, where improper handling of the ID parameter allows attackers to manipulate SQL queries. This flaw enables remote attackers to execute arbitrary SQL commands against the underlying database, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact
Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database records, or potentially gain unauthorized access to the application's backend systems.

Affected Products

itsourcecode Courier Management System 1.0

Discovery Timeline

2026-04-27 - CVE-2026-7076 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-7076

Vulnerability Analysis

This vulnerability is classified as CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly manifesting as injection flaws. The vulnerable endpoint /edit_branch.php accepts an ID parameter that is incorporated directly into SQL queries without proper sanitization or parameterized query implementation.

When user-supplied input is concatenated directly into SQL statements, attackers can inject malicious SQL syntax to alter the intended query logic. This allows for various attack scenarios including data exfiltration through UNION-based attacks, authentication bypass, and potentially writing files to the server depending on database permissions.

The network-accessible nature of this vulnerability means that any attacker with access to the web application can attempt exploitation without requiring any authentication credentials or special privileges.

Root Cause

The root cause of this vulnerability is the failure to properly validate and sanitize user input before incorporating it into SQL queries. The application directly uses the ID parameter value in database operations without employing prepared statements or parameterized queries, which would prevent SQL injection by treating user input as data rather than executable code.

Attack Vector

The attack is executed remotely over the network by sending crafted HTTP requests to the /edit_branch.php endpoint. An attacker manipulates the ID parameter to include SQL syntax that modifies the query structure. Since the exploit has been publicly disclosed, attackers can leverage existing proof-of-concept materials to craft their payloads.

The vulnerability requires no user interaction and can be exploited by unauthenticated remote attackers, making it accessible to a wide range of threat actors.

Detection Methods for CVE-2026-7076

Indicators of Compromise

Unusual SQL error messages in web server logs referencing /edit_branch.php
Web access logs showing requests to /edit_branch.php with suspicious ID parameter values containing SQL keywords (UNION, SELECT, OR, AND)
Database audit logs indicating unauthorized queries or data access patterns
Unexpected database modifications or data exfiltration activity

Detection Strategies

Implement web application firewall (WAF) rules to detect SQL injection patterns in the ID parameter
Monitor application logs for SQL syntax errors that may indicate injection attempts
Deploy intrusion detection signatures targeting common SQL injection payloads
Review web server access logs for anomalous patterns targeting /edit_branch.php

Monitoring Recommendations

Enable detailed logging on the web application and database servers
Configure alerts for failed SQL queries and database errors originating from the vulnerable endpoint
Implement database activity monitoring to detect unusual query patterns
Monitor network traffic for suspicious HTTP requests targeting the affected file

How to Mitigate CVE-2026-7076

Immediate Actions Required

Remove or restrict access to the /edit_branch.php file if not critical to operations
Implement input validation on the ID parameter to accept only numeric values
Deploy a web application firewall (WAF) with SQL injection detection rules
Consider taking the affected application offline until a patch is available

Patch Information

As of the last update on 2026-04-29, no official vendor patch has been released for this vulnerability. Organizations using itsourcecode Courier Management System 1.0 should monitor the IT Source Code website for security updates. Additional vulnerability details can be found in the VulDB entry and the GitHub issue tracker.

Workarounds

Implement prepared statements or parameterized queries in the vulnerable file to prevent SQL injection
Add server-side input validation to ensure the ID parameter contains only expected numeric values
Deploy network-level access controls to limit exposure of the vulnerable endpoint
Use a WAF to filter malicious SQL injection payloads before they reach the application

bash

# Example WAF rule configuration for ModSecurity
SecRule ARGS:ID "!@rx ^[0-9]+$" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt blocked in ID parameter',\
    log,\
    auditlog"