CVE-2025-66923
HighCVSS 7.2Exploitation Probability (EPSS)
Low risk45th percentile - higher than 45% of all known CVEs
Summary
A Cross-site scripting (XSS) vulnerability in Create/Update Customer(s) in Open Source Point of Sale v3.4.1 allows remote attackers to inject arbitrary web script or HTML via the phone_number parameter.
Risk Assessment
An attacker can execute malicious script in the user's browser, stealing session data or performing actions in the application context, potentially leading to account takeover.
Recommendation
Update Open Source Point of Sale to a version containing the fix or implement input validation and sanitization for the phone_number parameter.
Other vulnerabilities in Open Source Point of Sale
See all- CVE-2026-19895Low
In the Open Source Point of Sale (opensourcepos) up to version 3.4.2, a vulnerability was found in the Login::index function in app/Config/Filters.php. The issue is improper restriction of excessive authentication attempts, allowing brute-force attacks. The attack is remote but requires high complexity. The exploit has been published, and the project has not responded.
- CVE-2026-32712Medium
Open Source Point of Sale prior to version 3.4.3 has a stored XSS vulnerability in the Daily Sales management table. The customer_name column is rendered as raw HTML, allowing an attacker with customer management permissions to inject JavaScript via first_name or last_name fields.
- CVE-2026-39380Medium
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.
- CVE-2025-68147High
In Open Source Point of Sale (opensourcepos) versions 3.4.0 through 3.4.1, there is a stored XSS vulnerability in the "Return Policy" configuration field. The application does not properly sanitize user input before saving it to the database or displaying it on receipts, allowing an attacker with access to store configuration to inject malicious JavaScript.
- CVE-2025-66924Medium
A Cross-site scripting (XSS) vulnerability in Create/Update Item Kit(s) in Open Source Point of Sale v3.4.1 allows remote attackers to inject arbitrary web script or HTML via the "name" parameter.
- CVE-2025-66921High
A Cross-site scripting (XSS) vulnerability in Create/Update Item(s) Module in Open Source Point of Sale v3.4.1 allows remote attackers to inject arbitrary web script or HTML via the "name" parameter.
Original NVD description (English source)
A Cross-site scripting (XSS) vulnerability in Create/Update Customer(s) in Open Source Point of Sale v3.4.1 allows remote attackers to inject arbitrary web script or HTML via the phone_number parameter.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

