Reflected XSS in WellChoose SSO Portal Enables Remote Script 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 Reflected Cross-site Scripting vulnerability, allowing authenticated remote attackers to execute arbitrary JavaScript codes in user's browser through phishing attacks.

CVSS 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-2026-1429

EUVD

EUVD-2026-4709

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-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a Reflected Cross-site Scripting (XSS) issue in the Single Sign-On Portal System developed by WellChoose. It allows authenticated remote attackers to execute arbitrary JavaScript code in a user's browser by tricking the user through phishing attacks.

Impact Analysis

The vulnerability can lead to attackers executing malicious scripts in the context of the user's browser session. This can result in theft of sensitive information, session hijacking, or performing actions on behalf of the user without their consent.

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