CVE-2026-7073: Construction Management System SQLi Flaw

CVE-2026-7073 Overview

A SQL injection vulnerability has been discovered in itsourcecode Construction Management System 1.0. The flaw affects the /execute.php file, where improper handling of the code parameter allows attackers to inject malicious SQL statements. This vulnerability can be exploited remotely without authentication, potentially allowing unauthorized access to the underlying database, data exfiltration, modification of records, or further compromise of the application backend.

Critical Impact
Unauthenticated attackers can remotely exploit this SQL injection flaw to manipulate database queries, potentially leading to data theft, unauthorized data modification, or complete database compromise.

Affected Products

itsourcecode Construction Management System 1.0

Discovery Timeline

2026-04-27 - CVE CVE-2026-7073 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-7073

Vulnerability Analysis

This SQL injection vulnerability exists in the /execute.php endpoint of the Construction Management System. When user-supplied input is passed to the code parameter, the application fails to properly sanitize or parameterize the input before incorporating it into SQL queries. This allows an attacker to craft malicious input that alters the intended SQL query logic.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws where user input is not properly validated before being processed by an interpreter. In this case, the SQL interpreter processes attacker-controlled data as part of the query structure rather than as data values.

Since the attack vector is network-based and requires no authentication or user interaction, any internet-facing deployment of this application is at risk of exploitation. The exploit has been publicly disclosed, increasing the likelihood of active exploitation attempts.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries or prepared statements in the /execute.php file. When the code parameter value is directly concatenated into SQL queries without proper sanitization, it creates an injection point that attackers can exploit.

The application fails to implement secure coding practices such as:

Input validation and sanitization
Use of prepared statements with parameterized queries
Proper output encoding
Principle of least privilege for database accounts

Attack Vector

The attack can be carried out remotely over the network by sending crafted HTTP requests to the vulnerable /execute.php endpoint. An attacker would manipulate the code parameter to inject SQL syntax that modifies the query behavior.

A typical attack scenario involves:

Identifying the vulnerable parameter in /execute.php
Crafting malicious SQL injection payloads in the code parameter
Submitting requests to extract sensitive data, bypass authentication, or modify database contents
Potentially escalating access to execute system commands if database permissions allow

The vulnerability allows low-impact confidentiality, integrity, and availability breaches according to the CVSS vector, suggesting limited data exposure per successful injection but still representing significant risk in aggregate. For detailed technical information, refer to the GitHub Issue Discussion and VulDB Vulnerability #359648.

Detection Methods for CVE-2026-7073

Indicators of Compromise

Unusual or malformed requests to /execute.php containing SQL syntax characters such as single quotes, semicolons, UNION keywords, or comment sequences
Database error messages appearing in HTTP responses or application logs
Unexpected database queries or data access patterns in database audit logs
Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

Deploy Web Application Firewalls (WAF) with SQL injection detection rules targeting the /execute.php endpoint
Implement application-level logging to capture all requests to /execute.php with parameter values
Enable database query logging and alerting on suspicious query patterns such as UNION-based or error-based injection attempts
Use intrusion detection systems (IDS) with signatures for common SQL injection attack patterns

Monitoring Recommendations

Monitor HTTP access logs for requests to /execute.php with abnormally long parameter values or encoded SQL keywords
Set up alerts for database errors that may indicate failed injection attempts
Review database audit logs for queries accessing sensitive tables or attempting privilege escalation
Track any unusual data access patterns or bulk data retrieval operations

How to Mitigate CVE-2026-7073

Immediate Actions Required

Take the Construction Management System offline or restrict access to trusted networks only until a patch is applied
Implement WAF rules to block SQL injection attempts targeting /execute.php
Review database access logs for evidence of exploitation and assess potential data breach scope
Restrict database user privileges to minimum necessary permissions

Patch Information

At the time of publication, no official vendor patch has been released for this vulnerability. Organizations using itsourcecode Construction Management System 1.0 should monitor the IT Source Code website for security updates. Consider contacting the vendor directly for remediation guidance or patch availability information.

Workarounds

Implement input validation to reject or sanitize special characters in the code parameter before processing
Deploy a WAF with SQL injection protection rules in front of the application
Restrict network access to the application to trusted IP addresses only
Apply database hardening measures including least-privilege accounts and disabling dangerous stored procedures
Consider replacing the vulnerable component with a secure alternative that uses parameterized queries

bash

# Example WAF rule to block common SQL injection patterns (ModSecurity)
# Add to your ModSecurity configuration
SecRule ARGS:code "@rx (?i)(union|select|insert|update|delete|drop|concat|char|0x)" \
    "id:100001,phase:2,deny,status:403,msg:'SQL Injection Attempt Blocked'"