CVE-2026-86233 in Sales and Inventory System
Summary
by MITRE • 09/07/2026
A security vulnerability has been detected in itsourcecode Sales and Inventory System 1.0. Affected by this issue is some unknown functionality of the file /pages/us_del.php?type=user. The manipulation of the argument ID leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
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Analysis
by VulDB Data Team • 09/07/2026
The itsourcecode Sales and Inventory System version 1.0 contains a critical security flaw within its administrative interface, specifically located in the user deletion module accessible via the /pages/us_del.php endpoint. This vulnerability arises from improper input validation and sanitization mechanisms when processing the ID parameter passed through the type=user query string. The application fails to properly filter or escape special characters before incorporating this user-supplied data into a backend SQL database query, creating an opportunity for attackers to inject malicious SQL commands directly into the application logic.
This specific flaw is classified under CWE-89, which denotes Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The technical nature of this vulnerability allows an attacker to manipulate the ID argument to alter the structure of the underlying database query. By injecting carefully crafted payloads, a remote attacker can bypass authentication controls, extract sensitive data from the database such as user credentials and inventory records, modify or delete existing data, or potentially execute administrative operations on the database server depending on the privileges assigned to the application's database account.
The operational impact of this vulnerability is severe due to its potential for remote exploitation without requiring prior authentication in some configurations, although it typically targets authenticated users with access to user management features. The public disclosure and availability of exploits mean that automated scanning tools and malicious actors can easily identify and compromise systems running this specific version of the software. Successful exploitation could lead to a complete breach of data integrity and confidentiality, resulting in significant business disruption, loss of customer trust, and potential regulatory penalties under standards such as GDPR or PCI DSS if payment information is involved.
To mitigate this risk, immediate remediation should focus on implementing parameterized queries or prepared statements for all database interactions involving user-supplied input. This approach ensures that the database distinguishes between code and data, rendering injected SQL commands inert. Additionally, developers should enforce strict input validation by whitelisting expected character sets and lengths for the ID parameter rather than relying solely on blacklist approaches. Deploying a Web Application Firewall can provide an additional layer of defense by detecting and blocking common SQL injection patterns in transit. It is also recommended to apply principle of least privilege to the database user account used by the application, limiting its permissions to only what is strictly necessary for normal operations, thereby reducing the potential damage if exploitation occurs.