dbcve.org
Missing AuthorizationWeakness · CWE-862

CVE-2023-51355

HIGH · 8.2 CVSS v3.1 Published 2024-12-09
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
91/100
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
Missing Authorization vulnerability in MultiVendorX MultiVendorX dc-woocommerce-multi-vendor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MultiVendorX: from n/a through <= 4.0.23.

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

Missing authorization vulnerability in MultiVendorX WooCommerce multi-vendor plugin allows attackers to exploit incorrectly configured access control security levels. This broken access control flaw enables unauthorized users to access functionality or data they should not have permission to access, likely through improper role or capability checks.

MitigationUpdate MultiVendorX plugin to the latest version to obtain the vendor patch, and review user role capabilities and access control configurations in the WooCommerce marketplace settings.

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

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
None
Integrity
High
Availability
Low

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

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. Verify MultiVendorX plugin is installed
    In WordPress admin, go to Plugins > Installed Plugins and locate MultiVendorX in the list. Note the current plugin version displayed.
    Affected if MultiVendorX plugin is active on the WooCommerce site
  2. Check the installed MultiVendorX version
    Navigate to Plugins > Installed Plugins > MultiVendorX. Compare the installed version number against the vendor's release notes for patched versions after this CVE. If the installed version predates the patch, it may be vulnerable.
    Affected if Installed version is older than the patched version released to address CVE-2023-51355
  3. Inspect vendor user role capabilities
    In WordPress admin, go to MultiVendorX > Settings > Vendor. Review the capability settings for vendor roles. Check whether critical capabilities (such as those controlling access to sensitive vendor data, orders, or settings) are incorrectly assigned or missing proper capability checks.
    Affected if Vendor roles have elevated or unrestricted capabilities that should be limited or are missing capability verification for sensitive operations
  4. Review access control configuration in marketplace settings
    Go to MultiVendorX > Settings > Marketplace. Examine the access control options for vendor permissions, particularly any settings controlling what data or functionality vendors can access. Verify that unauthorized roles cannot bypass permission checks.
    Affected if Access control settings allow unauthorized users to reach functionality or data outside their intended permissions

A site is affected if MultiVendorX is installed with a pre-patch version and has misconfigured role capabilities or access control settings that permit unauthorized access to vendor data or functionality.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update MultiVendorX plugin to the latest version to obtain the vendor patch, and review user role capabilities and access control configurations in the WooCommerce marketplace settings.

Recommended fix Moderate confidence

Latest version > 4.0.23 (check WordPress plugin repository for current stable release)

  1. 1. Log in to the WordPress admin dashboard
  2. 2. Navigate to Plugins > Installed Plugins
  3. 3. Locate the MultiVendorX (dc-woocommerce-multi-vendor) plugin
  4. 4. Check the current installed version (should be <= 4.0.23)
  5. 5. Navigate to Dashboard > Updates or go to Plugins > Add New > Upload Plugin
  6. 6. Update MultiVendorX to the latest available version (check WordPress plugin repository for version > 4.0.23)
  7. 7. Verify the update completed successfully
  8. 8. Test vendor functionality to ensure the authorization fix does not break existing workflows
Caveat Minor - verify vendor capabilities and permissions after upgrade as the authorization fix may affect previously misconfigured access control settings

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,570
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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-2023-51355 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