OS Command Injection in WellChoose SSO Portal Enables Remote Execution

Publication date: 2026-01-26

Last updated on: 2026-03-11

Assigner: TWCERT/CC

Description

Single Sign-On Portal System developed by WellChoose has a OS Command Injection vulnerability, allowing authenticated remote attackers to inject arbitrary OS commands and execute them on the server.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-26

Last Modified

2026-03-11

Generated

2026-07-06

AI Q&A

2026-01-26

EPSS Evaluated

2026-07-05

NVD

CVE-2026-1428

EUVD

EUVD-2026-4708

Affected Vendors & Products

Vendor	Product	Version / Range
wellchoose	single_sign-on_portal_system	to iftop_p4_181 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-78	The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

Executive Summary

This vulnerability is an OS Command Injection in the Single Sign-On Portal System developed by WellChoose. It allows authenticated remote attackers to inject arbitrary operating system commands and execute them on the server.

Impact Analysis

The vulnerability can allow attackers with authentication to execute arbitrary OS commands on the server, potentially leading to full system compromise, data theft, service disruption, or unauthorized control over the affected system.

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