CVE-2026-12276: LA-Studio Element Kit Elementor Plugin Unauthorized Account Registration Vulnerability

Technical summary

CVE-2026-12276 is an authorization bypass vulnerability in LA-Studio Element Kit for Elementor prior to version 1.6.1. The plugin exposes AJAX actions that handle user registration without authenticating the caller or checking the site's registration policy (controlled by the WordPress setting register option). An unauthenticated HTTP request can trigger account creation, circumventing the WordPress-level registration disable setting. The CVSS 3.1 vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) reflects network-level access, no special conditions, no privileges required, and integrity impact from unauthorized account creation.

Business impact

Compromised registration controls expose the site to unauthorized account proliferation. Attackers can inject malicious user accounts, potentially gaining a foothold for privilege escalation, posting spam or malware, or launching lateral attacks if those accounts are later compromised or exploited. For sites that intentionally restrict registration—such as internal portals, client-only communities, or invitation-only platforms—this vulnerability completely undermines that administrative decision.

Affected systems

LA-Studio Element Kit for Elementor versions before 1.6.1 are affected. The vulnerability exists only in installations of this plugin; sites without the plugin or running version 1.6.1 or later are unaffected. Impact scope is limited to WordPress instances with this plugin active.

Exploitability

Exploitation requires no authentication, special conditions, or user interaction. Any attacker with network access can craft HTTP requests to the vulnerable AJAX endpoints to register accounts. The low attack complexity and absence of privilege requirements make this trivial to exploit at scale, though impact is limited to account creation rather than data theft or service disruption.

Remediation

Update LA-Studio Element Kit for Elementor to version 1.6.1 or later. This patch version implements proper registration status checks before processing account creation. After patching, verify that registration remains disabled on your site and monitor for suspicious newly created accounts that may have been registered during the vulnerability window.

Patch guidance

Upgrade the LA-Studio Element Kit for Elementor plugin to version 1.6.1 or later through the WordPress admin dashboard (Plugins > Updates) or via direct download from the official source. Test the update in a staging environment first if possible. After update deployment, confirm in WordPress Settings > General that user registration is set to your intended policy (disabled or restricted). If your site requires zero new user creation, consider disabling the plugin entirely or restricting AJAX handler access via firewall or Web Application Firewall rules as a defense-in-depth measure.

Detection guidance

Monitor WordPress user creation logs and audit trails for suspicious account registrations, especially new accounts created during off-hours or with unusual patterns (bulk creation, sequential usernames). Check web server logs for repeated POST requests to AJAX endpoints such as admin-ajax.php associated with the Element Kit plugin. Set alerts on user registration events if your logging infrastructure supports it. Conduct a user audit to identify any accounts created during the vulnerability exposure period that lack associated admin action records.

Why prioritize this

Although the CVSS score is MEDIUM (5.3), prioritization should account for the context of your registration policy. If your site intentionally disables user registration (e.g., internal tool, closed community, or client portal), this vulnerability directly contradicts your security posture and warrants prompt patching despite the moderate score. The trivial exploitability and lack of any preconditions mean an attacker can abuse this immediately and at scale. Conversely, sites that allow public registration face lower incremental risk but should still patch to prevent account injection attacks.

Risk score, explained

The CVSS 3.1 score of 5.3 (MEDIUM) reflects that the attack is easy to execute (AV:N/AC:L/PR:N/UI:N) but has limited scope—only integrity of user records is impacted (I:L), with no confidentiality or availability loss (C:N/A:N). The score does not account for business context; organizations with strict registration controls may view this as higher risk operationally, even though the technical impact is classified as medium.

Frequently asked questions