Motors <= 1.4.111 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Meta Modification via 'stm_mark_as_sold_car' Parameter

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Summary

CVECVE-2026-12435
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-01 08:16:21 UTC
Updated2026-07-01 13:56:17 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.002320000 probability, percentile 0.140150000 (date 2026-07-04)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Stylemix Motors Car Dealership Classified Listings Plugin affected 1.4.111 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.11... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.10... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.10... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.11... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.11... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/5238c344-d685-4eab-822c-d3c10... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.10... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Michael Perla (vizen5) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-06-16T18:49:13.000ZVendor Notified
CNA2026-06-30T19:04:55.000ZDisclosed
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