CVE-2026-39380
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
Stored XSS vulnerability in Open Source Point of Sale before version 3.4.3. Insufficient input sanitization in the stock_location parameter allows injection of malicious JavaScript that executes in the Employees interface.
Risk Assessment
An attacker can hijack employee sessions, steal data, or perform unauthorized actions in the POS system.
Recommendation
Update Open Source Point of Sale to version 3.4.3 or later.
Original NVD description (English source)
Open Source Point of Sale is a web based point-of-sale application written in PHP using CodeIgniter framework. Prior to 3.4.3, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Stock Locations configuration feature. The application fails to properly sanitize user input supplied through the stock_location parameter, allowing attackers to inject malicious JavaScript code that is stored in the database and executed when rendered in the Employees interface. This vulnerability is fixed in 3.4.3.