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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory
https://github.com/omkaryepre/vulnerability-research/blob/main/CVE-2025-66923/readme.md
Scores
CVSS v3
7.2
EPSS
0.0031
EPSS Percentile
54.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-20
CWE-79
Status
published
Products (1)
opensourcepos/open_source_point_of_sale
3.4.1
Published
Dec 17, 2025
Tracked Since
Feb 18, 2026