CVE-2025-66923

PoC —

CVSS 3.1

7.2 high

EPSS

<1%p44

Published

Dec 17, 2025 (Dec 17, 2025)

Modified

Jun 17, 2026

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.

Vendors: opensourcepos
Products: open source point of sale
Weakness: CWE-20, CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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