Description
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, 1.4.124 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.
Published: 2026-10-10
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored Cross‑Site Scripting enabling arbitrary script execution for authenticated users
Action: Apply Patch
AI Analysis

Impact

The plugin’s stm_f_s parameter is not sanitized, letting authenticated subscribers inject scripts that are stored and executed when the page loads. This results in the ability to run arbitrary JavaScript in users’ browsers, compromising confidentiality, integrity, and potentially defacing content.

Affected Systems

WordPress sites using the stylemix Motors – Car Dealership & Classified Listings Plugin version 1.4.124 or earlier are affected. No specific OS or PHP version restrictions are noted. The issue exists in all versions up to and including 1.4.124.

Risk and Exploitability

The CVSS score of 6.4 indicates moderate severity. The EPSS score of 0.201% indicates a low probability of exploitation, but the vulnerability is not listed in the CISA KEV catalog. The attack requires only subscriber‑level authentication, and the nonce is publicly available via the footer, making exploitation straightforward for any authenticated user. Reducing the risk relies on updating the plugin or applying an equivalent mitigation.

Generated by OpenCVE AI on October 23, 2026 at 07:57 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update the Motors plugin to the latest available version (e.g., 1.4.125 or newer) where this vulnerability is patched.
  • If an update is unavailable or delayed, disable the stm_f_s parameter functionality or remove the vulnerable JavaScript code from the pages through a custom function or patch.
  • Ensure that only users with higher privileges can access or modify car listings, and enforce stricter input validation on the parameter to avoid future XSS.

Generated by OpenCVE AI on October 23, 2026 at 07:57 UTC.

Tracking

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Advisories

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History

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description 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. 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, 1.4.124 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.
Title Motors <= 1.4.123 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'stm_f_s' Parameter Motors <= 1.4.124 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'stm_f_s' Parameter
References

Sun, 11 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sun, 11 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Stylemixthemes
Stylemixthemes motors - Car Dealer\, Classifieds \& Listing
Wordpress-extensions
Wordpress-extensions motors
Vendors & Products Stylemixthemes
Stylemixthemes motors - Car Dealer\, Classifieds \& Listing
Wordpress-extensions
Wordpress-extensions motors

Sat, 10 Oct 2026 08:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Motors <= 1.4.123 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'stm_f_s' Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

Stylemixthemes Motors - Car Dealer\, Classifieds \& Listing
Wordpress-extensions Motors
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-22T19:43:54.466Z

Reserved: 2026-09-23T13:18:29.927Z

Link: CVE-2026-96563

cve-icon Vulnrichment

Updated: 2026-10-11T12:12:18.013Z

cve-icon NVD

Status : Deferred

Published: 2026-10-10T08:17:07.703

Modified: 2026-10-22T20:17:08.220

Link: CVE-2026-96563

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T08:00:17Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')