What is CVE-2026-1429?

CVE-2026-1429 is a medium-severity vulnerability in Wellchoose Single Sign-On Portal System, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-26.

How severe is CVE-2026-1429?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Wellchoose Single Sign-On Portal System

CVE-2026-1429

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Wellchoose Single Sign-on Portal System — versions 0
Wellchoose Single_sign-on_portal_system

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

twcert@cert.org.tw (Third Party Advisory, third-party-advisory)
twcert@cert.org.tw (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-1429?: CVE-2026-1429 is a medium-severity vulnerability in Wellchoose Single Sign-On Portal System, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-26.
How severe is CVE-2026-1429?: Medium severity. CVSS v3 base score is 5.4 out of 10.