CVE-2025-70091

MEDIUM

OpenSourcePOS 3.4.1 - Stored Cross-Site Scripting via Customer Phone Number Parameter

Title source: llm

Description

A cross-site scripting (XSS) vulnerability in the Customers function of OpenSourcePOS v3.4.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Phone Number parameter.

References (2)

Core 2

Core References

Exploit, Mitigation, Third Party Advisory

https://github.com/hungnqdz/cve-research/blob/main/CVE-2025-70091.md

View Exploit ZIP pw:eip

Product

https://www.opensourcepos.org

Scores

CVSS v3 6.5

EPSS 0.0016

EPSS Percentile 5.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

opensourcepos/open_source_point_of_sale 3.4.1

Published Feb 13, 2026

Tracked Since Feb 18, 2026