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CubecartApplication

CVE-2026-34018

CRITICAL · 9.8 CVSS v3.1 Published 2026-04-17
Fix available
A fix is available. Upgrade to 6.6.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

SQL injection vulnerability in CubeCart versions prior to 6.6.0 allows remote attackers to execute arbitrary SQL statements via unsanitized input parameters in the application, likely in a search, filter, or user input field.

MitigationUpgrade to CubeCart version 6.6.0 or later, which contains the patch for this vulnerability. If immediate patching is not possible, implement input validation and parameterized queries as a temporary workaround.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
CubecartApplication
Affected:< 6.6.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Determine CubeCart installed version
    Check the CubeCart version by accessing the admin panel and navigating to the Settings > About page, or by locating the version file in the installation directory (commonly includes a version.php, version.json, or similar file in the /includes or /admin directory)
    Affected if The installed version number is lower than 6.6.0 (e.g., 6.5.x, 6.4.x, or earlier)
  2. Identify the CubeCart installation path
    Locate the CubeCart installation directory on the web server by checking the document root where the main index.php, admin.php, or storefront files are hosted
    Affected if CubeCart is installed and accessible via web browser without having been upgraded to 6.6.0 or later
  3. Check admin access controls
    Verify that the /admin directory is protected by strong authentication mechanisms (check for .htaccess restrictions, IP whitelisting, or Two-Factor Authentication in the admin panel settings)
    Affected if The admin area lacks additional access controls beyond standard username/password login, increasing exposure if authentication is bypassed via SQL injection
  4. Inspect database user privileges
    Review the database user credentials used by CubeCart in the configuration file (typically includes/inc.php, config.php, or similar) and check what privileges that database user has by querying the database server
    Affected if The CubeCart database user has excessive privileges such as DROP, ALTER, or FILE permissions beyond SELECT, INSERT, UPDATE, and DELETE on the application database
  5. Review web server request logs
    Examine web server access logs (Apache access_log, Nginx access.log) for unusual SQL syntax patterns, UNION SELECT statements, or common SQL injection payloads in request parameters
    Affected if Suspicious SQL injection patterns are observed in the logs targeting CubeCart endpoints

A user is affected if their installed CubeCart version is lower than 6.6.0 and the application processes user input through its web-facing interfaces.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.6.0 or later
Fixed in 6.6.0
Interim mitigation

Upgrade to CubeCart version 6.6.0 or later, which contains the patch for this vulnerability. If immediate patching is not possible, implement input validation and parameterized queries as a temporary workaround.

Recommended fix High confidence

6.6.0

  1. 1. Backup your current CubeCart installation including the database and all files.
  2. 2. Download CubeCart version 6.6.0 from the official source (community.cubecart.com or cubecart.com).
  3. 3. Upload the new files to your server, overwriting the existing installation.
  4. 4. Run any included database upgrade scripts if present in the distribution.
  5. 5. Verify the installation by logging into the admin panel and checking the version number.
  6. 6. Test critical functionality (product management, orders, customer data) to ensure the upgrade completed successfully.
  7. 7. Review application logs for any errors following the upgrade.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Cubecart Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA3.0 h
15.0 hours of engineering $2,560
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,096.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-34018 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data