CVE-2026-3892: StylemixThemes Motors Plugin arbitrary file deletion in dealer logo upload

CVE-2026-3892 · Severity: high · CVSS 8.1 · Published 2026-05-14

The Motors plugin for WordPress, which provides car dealership and classified listing functionality, contains a security flaw that allows users to delete files from the web server. An attacker with a basic user account could exploit this to remove critical website files, potentially leading to a complete site shutdown or the bypass of security configurations. This could result in significant operational downtime and loss of website data.

Technologies: StylemixThemes Motors – Car Dealership & Classified Listings. Vendors: StylemixThemes.

Quick answers

Is CVE-2026-3892 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-3892 being exploited in the wild.
How severe is CVE-2026-3892?
High severity, with a CVSS score of 8.1, published 14 May 2026.
Which products and versions are affected?
StylemixThemes Motors – Car Dealership & Classified Listings up to, and including, 1.4.107.
Is there a fix for CVE-2026-3892?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-3892 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-3892?
Check whether you run StylemixThemes Motors – Car Dealership & Classified Listings at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is classified as an arbitrary file deletion (CWE-73) resulting from insufficient file path validation within the 'become-dealer' logo upload flow. Specifically, the plugin's profile update handler allows authenticated users to provide an arbitrary filesystem path. An attacker with at least subscriber-level privileges can exploit this by sending a crafted request to delete sensitive files on the server, such as wp-config.php, which could lead to site takeover or denial of service. The issue affects all versions up to and including 1.4.107; a fix was introduced in changeset 3505874.

Affected products

  • StylemixThemes Motors – Car Dealership & Classified Listings Plugin up to, and including, 1.4.107

Timeline

  • 2026-05-14: disclosed
  • 2026-05-14: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.