CVE-2026-12435 Missing authorization in Motors – Car Dealership & Classified Listings Plugin
Authenticated subscribers can modify arbitrary car listings by replaying nonces, altering sold status and removing featured metadata.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12435?
CVE-2026-12435 is a medium-severity missing authorization vulnerability in stylemix Motors – Car Dealership & Classified Listings Plugin, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-12435?
How do I fix CVE-2026-12435?
No fix has been published for CVE-2026-12435 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-12435 being exploited?
There is no known exploitation of CVE-2026-12435 in the wild and no public exploit code.
Sources
Also known as GHSA-f64c-q58q-9942.