CVE-2026-21719 Command injection in CubeCart

High 8.6 Published 17 Apr 2026 Updated 17 Apr 2026

Administrative users can execute arbitrary OS commands via an injection flaw in CubeCart, requiring an upgrade to mitigate.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-21719?

CVE-2026-21719 is a high-severity command injection vulnerability in CubeCart, published on 17 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official 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.

Weakness: CWE-78

Which versions are affected by CVE-2026-21719?

It affects 1 product.

Products include Cubecart Cubecart.

How do I fix CVE-2026-21719?

No fix has been published for CVE-2026-21719 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-21719 being exploited?

There is no known exploitation of CVE-2026-21719 in the wild and no public exploit code.

Sources

Also known as GHSA-mj52-hprj-j8xh.