CVE-2026-54643 in CubeCart
Summary
by MITRE • 09/18/2026
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.
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Analysis
by VulDB Data Team • 09/18/2026
CubeCart represents a widely utilized ecommerce platform that manages online storefronts, inventory, and customer transactions. Within its administrative interface, the system relies on role-based access control to restrict sensitive operations to authorized personnel. However, prior to version 6.7.5, a critical authorization flaw existed within the order management subsystem, specifically in the handler responsible for deleting notes associated with orders. This component is located in the file admin/sources/orders.index.inc.php and serves as an endpoint for administrative users to remove historical comments or updates linked to specific customer orders. The vulnerability stems from an insufficient check of user permissions during this deletion process.
The technical root cause of this flaw lies in the logic governing the delete-note handler, which verifies only the presence and validity of the order_id and delete-note parameters before proceeding with the database operation. Crucially, the code fails to verify whether the authenticated administrator possesses the CC_PERM_DELETE permission specifically for orders. This oversight creates a broken access control scenario where any user logged into the administrative panel can execute this function regardless of their assigned role or privilege level. Consequently, an attacker who has obtained valid credentials for an account with limited privileges, such as one intended only for viewing inventory or processing basic shipments without modification rights, can bypass these restrictions by directly invoking the handler endpoint.
The operational impact of this vulnerability is significant due to its effect on data integrity and auditability. By exploiting this flaw, a low-privileged user can delete records from the CubeCart_order_notes table associated with any order in the system. These notes typically contain vital information regarding customer interactions, internal staff communications about order status, or explanations for delays and issues. The removal of these records effectively erases parts of the operational history, leading to a loss of audit-trail data that is essential for dispute resolution, compliance reporting, and forensic analysis. This capability allows malicious insiders or compromised accounts to obscure their activities or disrupt business operations by removing critical context from order histories without detection through standard permission logs.
This vulnerability aligns with CWE-269, which describes Improper Privilege Management, as the application fails to enforce appropriate access controls for a specific function. Furthermore, it relates to CWE-862, Missing Authorization Check, because the system does not verify that the user has the necessary rights before performing the state-changing action of deleting database records. From an offensive security perspective, this behavior is consistent with ATT&CK technique T1078, Valid Accounts, where attackers leverage legitimate credentials to perform actions they are not authorized for, and potentially T1562, Impair Defenses, by removing evidence or logs that would otherwise aid in detection.
To mitigate the risks associated with this vulnerability, organizations running CubeCart versions prior to 6.7.5 must upgrade immediately to version 6.7.5 or later, where the developer has implemented proper permission checks for the delete-note handler. Until an update can be applied, administrators should consider restricting access to the administrative interface through network-level controls such as IP whitelisting and enforcing multi-factor authentication to reduce the likelihood of credential compromise. Additionally, implementing robust logging mechanisms that capture all deletion events independently of the application's internal audit trails can help detect unauthorized attempts to remove order notes even if the primary records are successfully deleted by an attacker.