CVE-2025-66923: open source point — Exploit

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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CVSS v3.1 Score

7.2

HIGH

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

Weakness Type (CWE)

CWE-20 Improper Input Validation

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
opensourcepos	open_source_point_of_sale	All

References

Exploits

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

Other References

https://github.com/opensourcepos/opensourcepos

Frequently Asked Questions

What is CVE-2025-66923? +

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. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2025-66923? +

CVE-2025-66923 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-66923? +

CVE-2025-66923 affects products from opensourcepos, specifically: open_source_point_of_sale. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-66923? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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