SQL Injection in Cubecart

CVE-2026-34018

An SQL injection vulnerability exists in CubeCart prior to 6.6.0, which may allow an attacker to execute an arbitrary SQL statement on the product.

Vulnerability class: SQL Injection

EPSS: 0.002 (7.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cubecart
Cubecart Limited — versions prior to 6.6.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

vultures@jpcert.or.jp (Release Notes)
vultures@jpcert.or.jp (Third Party Advisory)

Frequently asked questions

What is CVE-2026-34018?: CVE-2026-34018 is a critical-severity vulnerability in Cubecart, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-04-17.
How severe is CVE-2026-34018?: Critical severity. CVSS v3 base score is 9.8 out of 10.