Auth bypass in Cubecart V6
CVE-2026-54643
CubeCart is an ecommerce software solution. Prior to 6.7.5, the delete-note handler in admin/sources/orders.index.inc.php verifies only the presence of order_id and delete-note parameters before deleting records from CubeCart_order_notes, without requiring CC_PERM_DELETE for orders. An authenticated administrator lacking order modification privileges can directly invoke the handler with valid identifiers and delete order-history notes, removing operational records and audit-trail data. This issue is fixed in version 6.7.5.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Cubecart V6 — versions < 6.7.5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-54643?
- CVE-2026-54643 is a medium-severity vulnerability in Cubecart V6, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-09-17.
- How severe is CVE-2026-54643?
- Medium severity. CVSS v3 base score is 5.4 out of 10.