Quick answers
- Is CVE-2026-7859 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-7859 being exploited in the wild.
- How severe is CVE-2026-7859?
- Informational severity, with a CVSS score of 5.3, published 22 June 2026.
- Which products and versions are affected?
- StylemixThemes Motors – Car Dealership & Classified Listings < 1.4.110.
- Is there a fix for CVE-2026-7859?
- 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-2026-7859 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-7859?
- 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 exists in the 'stm_ajax_add_a_car_media' AJAX action due to a lack of authorization and CSRF validation. An unauthenticated attacker can send a crafted POST request to wp-admin/admin-ajax.php to modify metadata for any post where the 'stm_car_user' meta is unset. This includes blog posts, pages, and WooCommerce products. Impacted metadata includes '_thumbnail_id', gallery arrays, and, if WooCommerce and pay-per-listing are configured, the '_price' field. The issue is fixed in version 1.4.110.
Affected products
- StylemixThemes Motors Car Dealership & Classified Listings < 1.4.110
Timeline
- 2026-06-01: disclosed: Publicly published by WPScan
- 2026-06-22: advisory: NVD published the CVE record