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.Referenceshttps://github.com/opensourcepos/opensourceposhttps://github.com/omkaryepre/vulnerability-research/blob/main/CVE-2025-66923/readme.md