CVE-2026-12435 json
Motors <= 1.4.111 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Meta Modification via 'stm_mark_as_sold_car' Parameter
published 2026-07-01 4 mo ago modified 2026-07-01 4 mo ago also EUVD-2026-40935
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.4.111. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to mark or unmark any other user's car listing as sold by replaying a valid nonce harvested from their own listing against an arbitrary victim post ID, triggering a site-wide 'Sold' badge on the victim's listing and silently stripping its special_car featured post meta as a side effect. Exploitation requires the attacker to hold an active listing of their own (obtainable by a Subscriber via the plugin's add-listing form) in order to harvest a valid nonce for the 'stm_mark_as_sold_car' action, which can then be replayed against any other listing's post ID.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- stylemix Motors – Car Dealership & Classified Listings Plugin
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/5238c344-d685-4eab-822c-d3c1050cc982?source=cve
- plugins.trac.wordpress.org /browser/motors-car-dealership-classified-listings/tags/1.4.110/includes/vehicle_functions.php#L2402
- plugins.trac.wordpress.org /browser/motors-car-dealership-classified-listings/tags/1.4.110/includes/vehicle_functions.php#L2400
- plugins.trac.wordpress.org /browser/motors-car-dealership-classified-listings/tags/1.4.110/templates/listing-cars/listing-list-owner-acti
- plugins.trac.wordpress.org /browser/motors-car-dealership-classified-listings/tags/1.4.108/includes/vehicle_functions.php#L2402
- plugins.trac.wordpress.org /browser/motors-car-dealership-classified-listings/tags/1.4.108/includes/vehicle_functions.php#L2400
- plugins.trac.wordpress.org /browser/motors-car-dealership-classified-listings/tags/1.4.108/templates/listing-cars/listing-list-owner-acti
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3577332%40motors-car-dealership-classified-listings&new=3577332
Sources
- CVE List CVE-2026-12435
- NVD CVE-2026-12435
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.