What’s Vulnerable › Vulnerabilities

CVE-2026-21719

• Severity: high (CVSS 8.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-17 · updated 2026-10-26
• Weakness: CWE-78

Description

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.

Affected products

• CubeCart Limited CubeCart: before 6.6.0 — fixed in 6.6.0

How to fix

Upgrade to a fixed version: CubeCart Limited CubeCart 6.6.0. Check the vendor advisory for mitigations.

References

• https://community.cubecart.com/t/cubecart-6-6-0-released-the-biggest-update-in-years/62405
• https://jvn.jp/en/jp/JVN78422311/

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