CVE-2025-3105: Vehica Core Plugin Privilege Escalation

CVE-2025-3105 Overview

The Vehica Core plugin for WordPress, used by the Vehica - Car Dealer & Listing WordPress Theme, contains a privilege escalation vulnerability in all versions up to and including 1.0.97. The plugin fails to properly validate user meta fields before updating them in the database. Authenticated attackers with Subscriber-level access or higher can modify their own user meta to grant themselves Administrator privileges. The flaw is tracked under CWE-269: Improper Privilege Management.

Critical Impact
Any authenticated user, including low-privilege Subscribers, can escalate to Administrator and achieve full control of the WordPress site.

Affected Products

Vehica Core plugin for WordPress, versions through 1.0.97
Vehica - Car Dealer & Listing WordPress Theme (bundling the vulnerable plugin)
WordPress sites with the Vehica Core plugin activated

Discovery Timeline

2025-04-04 - CVE-2025-3105 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-3105

Vulnerability Analysis

The vulnerability resides in Vehica Core's handling of user meta updates. The plugin exposes functionality that writes attacker-controlled data into the WordPress usermeta table without validating which meta keys can be modified. WordPress stores role assignments inside the wp_capabilities user meta key. When an authenticated attacker submits a crafted request that includes this key, the plugin writes the supplied value directly to the database. The result is direct modification of role assignments by the requesting user.

This is a classic broken access control pattern in WordPress plugins. The plugin authenticates the request but does not enforce an allow-list of safe meta keys, nor does it verify that the requested update does not alter role-defining fields. Consult the Wordfence vulnerability report for additional technical context.

Root Cause

The root cause is missing server-side validation of user meta keys before invoking the meta update routine. The plugin trusts client-supplied field names and values. Because WordPress treats wp_capabilities like any other meta entry, an unrestricted write primitive on user meta is equivalent to a role assignment primitive.

Attack Vector

An attacker registers or logs into a Subscriber account on a site running the vulnerable Vehica Core plugin. The attacker then sends an authenticated HTTP request to the plugin's user meta update endpoint with a payload that targets the wp_capabilities meta key and sets the value to the Administrator role. After the update completes, the attacker reauthenticates and operates with full Administrator rights, including plugin installation, theme upload, and arbitrary PHP execution through admin features.

No verified exploitation code is published in the references. The vulnerability mechanism is described in prose only; see the Vehica support article and the Wordfence report for vendor-supplied details.

Detection Methods for CVE-2025-3105

Indicators of Compromise

Unexpected changes to the wp_capabilities value in the wp_usermeta table, particularly accounts transitioning from subscriber to administrator
New or existing low-privilege accounts that suddenly gain Administrator role without an audit trail in the WordPress activity log
POST requests to Vehica plugin endpoints containing parameters that reference wp_capabilities, wp_user_level, or other role-defining meta keys
Installation of unfamiliar plugins or themes shortly after suspicious user role changes

Detection Strategies

Audit the wp_users and wp_usermeta tables for accounts whose role does not match the role assigned at registration
Enable WordPress audit logging plugins to record role changes and correlate them with the requesting user and IP address
Inspect web server access logs for authenticated POST requests to Vehica Core handlers containing role-related parameters
Monitor for the creation of administrator-level sessions originating from user agents or IPs previously associated with Subscriber accounts

Monitoring Recommendations

Alert on any modification to the wp_capabilities meta key for existing users
Track plugin and theme installation events and correlate them with the initiating user account
Review new user registrations followed within a short interval by privileged actions such as update_option, install_plugin, or file uploads

How to Mitigate CVE-2025-3105

Immediate Actions Required

Update the Vehica Core plugin to a version later than 1.0.97 as soon as the vendor releases a fix; consult the Vehica support article for the current patched release
Disable open user registration, or restrict the default role to a custom role with no write capabilities, until patching is complete
Audit all WordPress accounts and revoke any unauthorized Administrator privileges discovered in the wp_usermeta table
Rotate passwords and invalidate active sessions for any account suspected of compromise

Patch Information

The vendor has published guidance through the Vehica support article. Site operators should upgrade Vehica Core beyond version 1.0.97 and verify the running version under WordPress Admin → Plugins. The Wordfence advisory tracks the fixed release.

Workarounds

Deactivate the Vehica Core plugin until a patched version is installed if the site can tolerate the loss of functionality
Place the WordPress admin and plugin endpoints behind a web application firewall (WAF) that blocks requests containing role-defining meta keys such as wp_capabilities
Set define('DISALLOW_FILE_MODS', true); in wp-config.php to prevent plugin and theme installation even if an attacker gains Administrator role

bash

# wp-config.php hardening to limit post-exploitation impact
define('DISALLOW_FILE_MODS', true);
define('DISALLOW_FILE_EDIT', true);

# WP-CLI: identify users whose role was changed to administrator
wp user list --role=administrator --fields=ID,user_login,user_registered,user_email

# WP-CLI: revert a suspicious account back to subscriber
wp user set-role <user_id> subscriber