ConvertplusWordPress extension · Convertplug

CVE-2019-15863

HIGH · 7.5 CVSS v3.0 Published 2019-09-03
Fix available
A fix is available. Upgrade to 3.4.5 or later.
See remediation →
84/100
Remediation priority · High
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
The ConvertPlus plugin before 3.4.5 for WordPress has an unintended account creation (with the none role) via a request for variants.

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 · high confidence

The ConvertPlus WordPress plugin before version 3.4.5 contains an access control flaw that allows unintended account creation through variant requests. The plugin incorrectly creates user accounts without proper authorization checks, assigning them the 'none' role which provides no privileges but still constitutes unauthorized account creation.

MitigationUpdate the ConvertPlus plugin to version 3.4.5 or later to obtain the patched version that includes proper authorization validation before user account creation.

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
ConvertplusWordPress extension
Affected:< 3.4.5

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
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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 ConvertPlus plugin is installed
    Navigate to WordPress admin dashboard > Plugins > Installed Plugins, or inspect the /wp-content/plugins/convertplug directory existence
    Affected if ConvertPlus plugin is present in the WordPress installation
  2. Check installed ConvertPlus version
    In WordPress admin, go to Plugins > Installed Plugins and locate ConvertPlus to view the version number, or check the main plugin file header for the Version field
    Affected if Version is displayed as lower than 3.4.5 or the version field is missing/unreadable and the plugin is active
  3. Identify user accounts with none role
    In WordPress admin, go to Users > All Users and look for any user accounts with the role column showing 'None' or an unrecognized role
    Affected if Any user account exists with 'None' role that was not deliberately created by an administrator for a specific purpose
  4. Review user creation logs if available
    Check WordPress audit logs, server access logs, or security plugins for POST requests to /wp-admin/admin-ajax.php with action 'cps_create_user' or similar registration-related actions originating from unauthenticated IPs
    Affected if Unauthenticated or unexpected user creation events are logged in the timeframe the plugin was active

The environment is affected if ConvertPlus plugin version is below 3.4.5 and unauthorized user accounts with 'None' role exist or unauthenticated user creation requests are logged.

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.

From vendor data
Upgrade available Upgrade to 3.4.5 or later
Fixed in 3.4.5
Interim mitigation

Update the ConvertPlus plugin to version 3.4.5 or later to obtain the patched version that includes proper authorization validation before user account creation.

Fix this in Convertplus Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,664.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2019-15863 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-15863 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