CVE-2026-12435: CWE-862 Missing Authorization in stylemix Motors – Car Dealership & Classified Listings Plugin
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.
AI Analysis
Technical Summary
CVE-2026-12435 is an authorization bypass vulnerability (CWE-862) in the Motors – Car Dealership & Classified Listings Plugin for WordPress, affecting all versions up to 1.4.111. The plugin fails to properly verify user authorization when performing the 'stm_mark_as_sold_car' action. An authenticated attacker with subscriber-level privileges can harvest a valid nonce from their own listing and replay it against any other listing's post ID to mark it as sold and remove its featured status. This vulnerability allows unauthorized modification of other users' listings without requiring elevated privileges beyond subscriber access.
Potential Impact
The vulnerability allows authenticated users with minimal privileges (subscriber-level) to manipulate other users' car listings by marking them as sold and removing their featured status. This results in unauthorized modification of listing data, potentially impacting the integrity and trustworthiness of listings on affected sites. There is no direct confidentiality or availability impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict subscriber-level users from adding listings if possible, or monitor for suspicious activity related to listing status changes. Avoid relying on nonce replay for authorization without additional verification.
CVE-2026-12435: CWE-862 Missing Authorization in stylemix Motors – Car Dealership & Classified Listings Plugin
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.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12435 is an authorization bypass vulnerability (CWE-862) in the Motors – Car Dealership & Classified Listings Plugin for WordPress, affecting all versions up to 1.4.111. The plugin fails to properly verify user authorization when performing the 'stm_mark_as_sold_car' action. An authenticated attacker with subscriber-level privileges can harvest a valid nonce from their own listing and replay it against any other listing's post ID to mark it as sold and remove its featured status. This vulnerability allows unauthorized modification of other users' listings without requiring elevated privileges beyond subscriber access.
Potential Impact
The vulnerability allows authenticated users with minimal privileges (subscriber-level) to manipulate other users' car listings by marking them as sold and removing their featured status. This results in unauthorized modification of listing data, potentially impacting the integrity and trustworthiness of listings on affected sites. There is no direct confidentiality or availability impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict subscriber-level users from adding listings if possible, or monitor for suspicious activity related to listing status changes. Avoid relying on nonce replay for authorization without additional verification.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-06-16T18:34:03.436Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a44ca9627e9c797192fabf4
Added to database: 07/01/2026, 08:06:46 UTC
Last enriched: 07/08/2026, 13:08:25 UTC
Last updated: 08/15/2026, 12:41:07 UTC
Views: 65
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