CVE-2026-21719

| EUVD-2026-23366 HIGH
2026-04-17 jpcert
Command Injection
8.6
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

4
Analysis Updated
Apr 17, 2026 - 06:27 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Apr 17, 2026 - 06:22 vuln.today
cvss_changed
CVSS Changed
Apr 17, 2026 - 06:22 NVD
7.2 (HIGH) 8.6 (HIGH)
Analysis Generated
Apr 17, 2026 - 05:36 vuln.today

DescriptionNVD

An OS command injection vulnerability exists in CubeCart prior to 6.6.0, which may allow a user with an administrative privilege to execute an arbitrary OS command.

AnalysisAI

OS command injection in CubeCart e-commerce platform (versions <6.6.0) enables authenticated administrators to execute arbitrary system commands on the underlying server. CubeCart Limited released version 6.6.0 to address this vulnerability reported by JPCERT. …

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RemediationAI

Within 24 hours: Identify all CubeCart instances in production and document current versions. Within 7 days: Upgrade all CubeCart deployments below version 6.6.0 to version 6.6.0 or later; if upgrade is blocked, restrict admin account access to trusted users only and implement network segmentation isolating CubeCart admin interfaces. …

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CVE-2026-21719 vulnerability details – vuln.today
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