High severity · published Jan 26, 2026
CVE-2026-1427
WellChoose｜Single Sign-On Portal System - OS Command Injection
8.8
CVSS
1.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Single Sign-On Portal System · WellChoose
before IFTOP_P4_181 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1427
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1427
Third Party Advisory
https://www.twcert.org.tw/en/cp-139-10655-59160-2.html
Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-10654-23f40-1.html
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