---
id: CVE-2026-96563
title: >-
  The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress
  is vulnerable to Stored Cross-Site Scripting via the 'stm_f_s' parameter in
  all versions up to, and including, 1.4.123 due to insufficient input
  sanitization a…
summary: >-
  The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress
  is vulnerable to Stored Cross-Site Scripting via the 'stm_f_s' parameter in
  all versions up to, and including, 1.4.123 due to insufficient input
  sanitization a…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T08:17:07.703'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96563'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.123/assets/js/frontend/filter.js#L724
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.123/assets/js/frontend/filter.js#L751
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.123/assets/js/frontend/init.js#L311
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.123/assets/js/frontend/init.js#L337
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.123/includes/vehicle_functions.php#L1199
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.123/includes/vehicle_functions.php#L1432
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/14bb850e-df8a-46f0-b320-d8aedd763901?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-10T08:27:37.795Z'
---

## Overview

The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'stm_f_s' parameter in all versions up to, and including, 1.4.123 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The nonce required by the stm_ajax_add_a_car AJAX handler is emitted in wp_footer on every page, making it accessible to any authenticated user and removing any practical barrier to exploitation at the Subscriber level.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.