stylemix Motors Plugin up to 1.4.103 on WordPress User Meta Update stm_save_user_extra_fields user_id authorization

Summaryinfo

A vulnerability, which was classified as critical, was found in stylemix Motors Plugin up to 1.4.103 on WordPress. This affects the function stm_save_user_extra_fields of the component User Meta Update Handler. Executing a manipulation of the argument user_id can lead to authorization. This vulnerability is registered as CVE-2026-1934. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in stylemix Motors Plugin up to 1.4.103 on WordPress. This vulnerability affects the function stm_save_user_extra_fields of the component User Meta Update Handler. The manipulation of the argument user_id with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Motors – Car Dealership & Classified Listings plugin for WordPress is vulnerable to Payment Bypass via insecure user meta update in all versions up to, and including, 1.4.103 This is due to the stm_save_user_extra_fields() function updating sensitive user meta fields from POST data without verifying that the current user should have permission to modify those fields. The function hooks into the 'personal_options_update' action and only checks current_user_can('edit_user', $user_id), which passes for any user editing their own profile. This makes it possible for authenticated attackers, with Subscriber-level access and above, to set their stm_payment_status to 'completed', bypassing the PayPal payment verification and gaining access to paid Dealer membership features without completing any transaction.

The weakness was published by Shrikant Bhosale. The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-1934 since 02/04/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• stylemix

Name

• Motors Plugin

Version

• 1.4.103

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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