CVE-2026-86265 in Sales and Inventory System
Summary
by MITRE • 09/07/2026
A vulnerability has been found in itsourcecode Sales and Inventory System 1.0. Affected by this vulnerability is an unknown functionality of the file /pages/us_transac.php. Such manipulation of the argument Username leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public 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 the user transaction management module, specifically located in the file pages/us_transac.php. This vulnerability stems from an improper handling of input data associated with the Username argument during database query construction. The application fails to adequately sanitize or parameterize this specific input field before incorporating it into SQL statements executed against the backend database server. As a result, an attacker can inject malicious SQL code through the username parameter, bypassing intended logic and gaining unauthorized access to underlying database structures. This type of flaw is classically categorized under CWE-89 Improper Neutralization of Special Elements used in an SQL Command which represents one of the most prevalent and dangerous web application vulnerabilities due to its potential for data exfiltration and system compromise.
The operational impact of this vulnerability is severe, as it allows for remote code execution at the database level without requiring prior authentication or valid credentials if the endpoint is publicly accessible. An attacker can leverage tools such as sqlmap to automate the exploitation process, potentially extracting sensitive customer information including names, contact details, and financial records stored within the inventory system. Beyond data theft, successful exploitation could allow for modification of transactional records, leading to significant business integrity issues and potential regulatory violations under standards like GDPR or PCI-DSS depending on the nature of the stored data. The fact that a public exploit exists significantly lowers the barrier to entry for malicious actors, increasing the likelihood of automated scanning and targeted attacks against instances running this specific version of the software.
From an offensive security perspective, this vulnerability aligns with MITRE ATT&CK technique T1059 Command and Scripting Interpreter where SQL injection is used as a vector to execute commands or extract data via database interaction APIs. It also relates to TA0006 Credential Access if sensitive credentials are harvested from the database table structures through blind sql injection techniques. The lack of input validation on server-side scripts handling user-facing inputs remains a fundamental oversight in web application development lifecycles, particularly in open-source projects where rigorous security auditing may be limited compared to commercial enterprise solutions.
Mitigation strategies must focus immediately on implementing parameterized queries or prepared statements for all database interactions involving the username field and any other user-supplied data within us_transac.php. Developers should also enforce strict input validation using allowlists that define acceptable character sets and lengths for usernames, rejecting any input containing SQL metacharacters such as single quotes, double dashes, or semicolons. Deploying a Web Application Firewall can provide an additional layer of defense by detecting and blocking known sql injection patterns in HTTP requests before they reach the application logic. Furthermore, it is advisable to apply principle of least privilege to database accounts used by the web application, ensuring that even if exploitation occurs, the attacker cannot perform destructive actions like dropping tables or modifying system configurations. Updating to a patched version released by itsourcecode or migrating to a more secure alternative inventory management solution with active security maintenance is strongly recommended to eliminate this risk vector entirely.