Cyber Resilience

CVE-2026-21719

HighRCE

Published: 17 April 2026

Published
17 April 2026
Modified
20 April 2026
KEV Added
—
Patch
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CVSS Score v4 8.6 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
EPSS Score 0.0120 64.3th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-21719 is a high-severity OS Command Injection (CWE-78) vulnerability in Cubecart Cubecart. Its CVSS base score is 8.6 (High).

Operationally, ranked in the top 35.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-78

Related Threats

CVEs Like This One

CVE-2026-34018Same product: Cubecart Cubecart
CVE-2018-25115Shared CWE-78
CVE-2025-41276Shared CWE-78
CVE-2026-28463Shared CWE-78
CVE-2024-55590Shared CWE-78
CVE-2026-23678Shared CWE-78
CVE-2025-56089Shared CWE-78
CVE-2025-56087Shared CWE-78
CVE-2025-10230Shared CWE-78
CVE-2026-27635Shared CWE-78

Affected Assets

cubecart
cubecart
≤ 6.6.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References