CVE-2025-66923
Unknown Unknown - Not Provided
Cross-site Scripting in Open Source POS v3.4.1 Phone Parameter

Publication date: 2025-12-17

Last updated on: 2025-12-18

Assigner: MITRE

Description
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.
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Meta Information
Published
2025-12-17
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-17
EPSS Evaluated
2026-06-14
NVD
CVE-2025-66923
EUVD
EUVD-2025-203908
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
opensourcepos open_source_point_of_sale 3.4.1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is a Cross-site scripting (XSS) issue in the Create/Update Customer(s) functionality of Open Source Point of Sale version 3.4.1. It allows remote attackers to inject arbitrary web scripts or HTML code through the phone_number parameter, which can then be executed in the context of the affected application.

Impact Analysis

The vulnerability can allow attackers to execute malicious scripts in the context of the application, potentially leading to theft of user credentials, session hijacking, defacement of the website, or distribution of malware to users interacting with the affected functionality.

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