CVE-2025-49916
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 · uneditedMissing Authorization vulnerability in MultiVendorX MultiVendorX dc-woocommerce-multi-vendor allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects MultiVendorX: from n/a through <= 4.2.23.
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 confidenceMultiVendorX plugin for WooCommerce has a missing authorization vulnerability (Broken Access Control) that allows users to access functionality not properly constrained by Access Control Lists (ACLs). This could permit unauthorized users (likely vendors or customers) to perform actions or access data they should not have permission to access, such as administrative functions or other vendors' sensitive information.
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
- Low
- Integrity
- High
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 checksWork through these to decide whether this CVE applies to you.
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Verify MultiVendorX plugin is installedCheck your WordPress installation for the MultiVendorX plugin in wp-content/plugins/ or via WordPress admin under PluginsAffected if MultiVendorX plugin is present in the WordPress installation
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Identify installed MultiVendorX versionIn WordPress admin, go to Plugins > Installed Plugins and locate the version number for MultiVendorX, or check the plugin header in the main plugin fileAffected if The installed version has not been patched for CVE-2025-49916 (compare against the latest patched version once available)
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Review vendor user roles and capabilitiesNavigate to MultiVendorX > Vendors > Vendor Roles or use a role editor plugin to examine the capabilities assigned to vendor-level usersAffected if Vendor roles have administrative capabilities or permissions to access other vendors' sensitive information
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Inspect ACL configuration settingsIn MultiVendorX settings, check Access Control List or permission settings under MultiVendorX > Settings > General or Permissions tabAffected if ACL rules are missing, disabled, or misconfigured to allow unauthorized access to administrative functions or other vendor data
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Audit vendor access to sensitive endpointsReview server logs, activity logs, or use a security plugin to monitor which API endpoints or admin pages vendor users are successfully accessingAffected if Vendors can access endpoints or data they should not have permission to view, such as admin functions or other vendors' sensitive information
If MultiVendorX is installed and vendor roles have excessive permissions or ACLs are misconfigured, the environment is likely affected by CVE-2025-49916
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataUpdate MultiVendorX to the latest patched version once available. Until then, review user roles and permissions, limit vendor access to essential functions only, and monitor for suspicious vendor activity.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-49916 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-49916 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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