Stylemix Motors Plugin up to 1.4.128 on WordPress User Extra Fields stm_save_user_extra_fields stm_dealer_logo_path unrestricted upload

Summaryinfo

A vulnerability has been found in Stylemix Motors Plugin up to 1.4.128 and classified as critical. This vulnerability affects the function stm_save_user_extra_fields of the component User Extra Fields. The manipulation of the argument stm_dealer_logo_path leads to unrestricted upload. This vulnerability is uniquely identified as CVE-2026-116617. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Stylemix Motors Plugin up to 1.4.128 and classified as critical. This issue affects the function stm_save_user_extra_fields of the component User Extra Fields. The manipulation of the argument stm_dealer_logo_path with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to File Deletion in all versions up to, and including, 1.4.128 The vulnerability exists because `stm_save_user_extra_fields()`, hooked to `personal_options_update`, writes the attacker-controlled `stm_dealer_logo_path` parameter directly to user meta without an ownership check binding the submitted path to the submitting user — unlike the `stm_payment_status` and `stm_lost_password_hash` fields, this field is not gated by a `manage_options` or `edit_users` capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete image files belonging to other users under `wp-content/uploads` — including other users' avatars, dealer logos, and uploaded media — by storing a crafted path via their own profile and then triggering `unlink()` through the become-dealer form on their author page. Note that the two path guards (`stm_mvl_is_path_within_uploads` and `stm_mvl_is_allowed_image_file`) do restrict the attack surface to files with an image extension that resolve within the uploads basedir; files outside that directory, such as `wp-config.php` or plugin PHP files, cannot be reached.

The advisory is shared at wordfence.com. The identification of this vulnerability is CVE-2026-116617 since 10/26/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/05/2026). MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

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

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Productinfo

Type

• WordPress Plugin

Vendor

• Stylemix

Name

• Motors Plugin

Version

• 1.4.128

CPE 2.3info

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CPE 2.2info

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