CVE-2025-66923 — HIGH (7.2)

Vulnerability 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.

CVSS Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Opensourcepos	Open Source Point Of Sale	3.4.1

Related Weaknesses (CWE)

CWE-20 CWE-79

References

https://github.com/omkaryepre/vulnerability-research/blob/main/CVE-2025-66923/reExploitThird Party Advisory
https://github.com/opensourcepos/opensourceposProduct
https://github.com/omkaryepre/vulnerability-research/blob/main/CVE-2025-66923/reExploitThird Party Advisory

FAQ

What is CVE-2025-66923?

CVE-2025-66923 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 paramete...

How severe is CVE-2025-66923?

CVE-2025-66923 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-66923?

Check the references section above for vendor advisories and patch information. Affected products include: Opensourcepos Open Source Point Of Sale.