XSS in Opensourcepos Open Source Point Of Sale
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (43.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000
Affected products
- Opensourcepos Open Source Point Of Sale — versions 3.4.1
Weakness classification (CWE)
References
- github.com/opensourcepos/opensourcepos (Product)
- github.com/omkaryepre/vulnerability-research/blob/main/CVE-2025-66923/readme.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-66923?
- CVE-2025-66923 is a high-severity vulnerability in Opensourcepos Open Source Point Of Sale, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2025-12-17.
- How severe is CVE-2025-66923?
- High severity. CVSS v3 base score is 7.2 out of 10.