CVE-2026-7088: Pharmacy Sales & Inventory System SQLi

CVE-2026-7088 Overview

A SQL injection vulnerability has been identified in SourceCodester Pharmacy Sales and Inventory System version 1.0. The vulnerability exists in an unspecified function within the /ajax.php?action=save_receiving endpoint. By manipulating the ID argument, an attacker can inject arbitrary SQL commands, potentially compromising the integrity and confidentiality of the database. The attack can be executed remotely without authentication, and exploit details have been publicly disclosed.

Critical Impact
Remote attackers can exploit this SQL injection vulnerability to extract sensitive pharmacy data, modify inventory records, or potentially compromise the underlying database server.

Affected Products

SourceCodester Pharmacy Sales and Inventory System 1.0

Discovery Timeline

2026-04-27 - CVE CVE-2026-7088 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-7088

Vulnerability Analysis

This vulnerability falls under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which is the parent classification for injection vulnerabilities including SQL injection. The affected endpoint /ajax.php?action=save_receiving processes the ID parameter without proper sanitization, allowing attackers to inject malicious SQL statements that are executed by the backend database.

The Pharmacy Sales and Inventory System is a PHP-based web application designed for pharmacy management operations. The vulnerable function handles inventory receiving operations and fails to properly validate or parameterize user-supplied input before incorporating it into SQL queries.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries in the save_receiving action handler. The application directly incorporates user-supplied data from the ID parameter into SQL statements, creating a classic SQL injection attack surface. This implementation flaw allows malicious actors to break out of the intended query structure and execute arbitrary database commands.

Attack Vector

This vulnerability is exploitable over the network without requiring authentication. An attacker can craft malicious HTTP requests to the /ajax.php?action=save_receiving endpoint with a manipulated ID parameter containing SQL injection payloads. The attack requires no user interaction and can be automated for mass exploitation.

The exploitation technique involves injecting SQL metacharacters and commands through the ID parameter. Depending on the database configuration and application privileges, attackers may be able to:

Extract sensitive data from the pharmacy database including patient information, transaction records, and user credentials
Modify or delete inventory records and sales data
Escalate privileges within the database
Potentially achieve command execution on the underlying server if database features like xp_cmdshell (MSSQL) or INTO OUTFILE (MySQL) are available

Technical details and proof-of-concept information are available via the VulDB Vulnerability Details and the GitHub Issue Tracker.

Detection Methods for CVE-2026-7088

Indicators of Compromise

Unusual or malformed HTTP requests to /ajax.php?action=save_receiving containing SQL metacharacters such as single quotes, double dashes, or UNION keywords in the ID parameter
Database error messages appearing in application logs or HTTP responses indicating SQL syntax errors
Unexpected database queries in database audit logs, particularly those involving information_schema tables or system commands
Evidence of data exfiltration or unauthorized data modifications in pharmacy records

Detection Strategies

Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in requests to the affected endpoint
Enable detailed logging for the /ajax.php endpoint and monitor for suspicious parameter values
Implement database activity monitoring to detect anomalous query patterns or unauthorized data access
Configure intrusion detection systems with signatures for SQL injection attack patterns targeting PHP applications

Monitoring Recommendations

Review web server access logs for requests containing encoded SQL injection payloads targeting the save_receiving action
Monitor database logs for unusual query patterns, failed authentication attempts, or access to sensitive tables
Set up alerting for any database errors or exceptions originating from the pharmacy application
Track application behavior for signs of data extraction such as large result sets or unusual export operations

How to Mitigate CVE-2026-7088

Immediate Actions Required

Restrict network access to the Pharmacy Sales and Inventory System to trusted networks only until a patch is available
Implement WAF rules to filter malicious input to the /ajax.php?action=save_receiving endpoint
Review database user privileges and apply the principle of least privilege to the application's database account
Enable comprehensive logging and monitoring for the affected application

Patch Information

As of the last modification date (2026-04-29), no official vendor patch has been released for this vulnerability. Organizations using SourceCodester Pharmacy Sales and Inventory System 1.0 should contact the vendor via SourceCodester for security update information. Additional technical details are available through the VulDB CTI Report.

Workarounds

Implement input validation at the web server or WAF level to sanitize the ID parameter before it reaches the application
Consider deploying a reverse proxy with SQL injection filtering capabilities in front of the application
If source code access is available, modify the save_receiving function to use prepared statements with parameterized queries
Temporarily disable or restrict access to the vulnerable endpoint if receiving functionality is not critical to operations
Isolate the database server and restrict its network exposure to minimize the impact of potential exploitation