CVE-2026-7194: Pharmacy Sales System SQL Injection Flaw

CVE-2026-7194 Overview

A SQL Injection vulnerability has been identified in SourceCodester Pharmacy Sales and Inventory System 1.0. This security flaw impacts the /ajax.php?action=save_product file, where manipulation of the ID argument allows for SQL injection attacks. The vulnerability can be exploited remotely without authentication, and proof-of-concept exploit information has been made publicly available.

Critical Impact

This SQL Injection vulnerability allows remote attackers to manipulate database queries through the ID parameter, potentially leading to unauthorized data access, data modification, or complete database compromise in pharmacy management systems.

Affected Products

• SourceCodester Pharmacy Sales and Inventory System 1.0

Discovery Timeline

• 2026-04-27 - CVE-2026-7194 published to NVD
• 2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-7194

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 attacks. The vulnerable endpoint /ajax.php?action=save_product fails to properly sanitize user-supplied input in the ID parameter before incorporating it into SQL queries.

The pharmacy management system processes product-related operations through AJAX requests, where the save_product action handler accepts an ID parameter that is directly used in database operations without adequate input validation or parameterized queries. This allows attackers to inject malicious SQL statements that modify the intended query logic.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries (prepared statements) in the application's database interaction layer. The ID parameter value is concatenated directly into SQL statements, allowing attackers to break out of the intended query structure and execute arbitrary SQL commands.

Attack Vector

The attack can be carried out remotely over the network without requiring authentication. An attacker can craft malicious HTTP requests to the /ajax.php endpoint, injecting SQL code through the ID parameter. Successful exploitation could allow the attacker to:

• Extract sensitive data from the database (patient information, inventory records, financial data)
• Modify or delete database records
• Bypass authentication mechanisms
• Potentially gain access to the underlying operating system through database functions

The vulnerability mechanism exploits improper input sanitization in the ID parameter handling. When processing save_product requests, the application directly incorporates user input into SQL queries without proper escaping or parameterization. For detailed technical analysis and proof-of-concept information, refer to the GitHub Issue Discussion and VulDB Vulnerability Details.

Detection Methods for CVE-2026-7194

Indicators of Compromise

• Unusual SQL error messages in application logs referencing the /ajax.php endpoint
• HTTP requests to /ajax.php?action=save_product containing SQL syntax characters such as single quotes, semicolons, or UNION statements
• Unexpected database query patterns or errors in database logs
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in requests to /ajax.php
• Monitor HTTP access logs for requests containing SQL injection payloads in the ID parameter
• Deploy database activity monitoring to detect anomalous query patterns or unauthorized data access
• Use intrusion detection systems with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for the /ajax.php endpoint and associated database queries
• Configure alerts for SQL syntax errors or database exceptions originating from the product management module
• Monitor for bulk data access patterns that may indicate data exfiltration attempts
• Review database audit logs for unauthorized UNION, SELECT, or administrative SQL operations

How to Mitigate CVE-2026-7194

Immediate Actions Required

• Restrict network access to the Pharmacy Sales and Inventory System to trusted networks only
• Implement Web Application Firewall rules to filter SQL injection attempts targeting /ajax.php
• Review application logs and database audit trails for evidence of exploitation
• Consider taking the affected application offline until patches are applied

Patch Information

As of the last update on 2026-04-29, no official patch from SourceCodester has been referenced in the CVE data. Organizations should monitor SourceCodester Security Resources for security updates and patches. Given that this is an open-source project, organizations may need to implement their own fixes or apply community-developed patches.

For additional vulnerability context and community discussion, refer to the VulDB Submission Report and VulDB CTI Information.

Workarounds

• Implement input validation on the ID parameter to accept only numeric values
• Deploy a reverse proxy or WAF with SQL injection protection rules in front of the application
• Modify the application code to use prepared statements with parameterized queries
• Apply principle of least privilege to database accounts used by the application
• Isolate the application server and database on separate network segments with strict access controls

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:ID "(\%27)|(\')|(\-\-)|(%23)|(#)" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt Detected in ID Parameter'"