CVE-2024-13376: Industrial WordPress Theme Privilege Escalation

CVE-2024-13376 Overview

The Industrial theme for WordPress contains a privilege escalation vulnerability in the _ajax_get_total_content_import_items() function. The function lacks a capability check, allowing authenticated users with subscriber-level access or higher to modify arbitrary WordPress options. All versions up to and including 1.7.8 are affected. Attackers can enable open user registration and set the default registration role to administrator, granting themselves administrative access to the site. The weakness is classified as improper privilege management [CWE-269].

Critical Impact

Any authenticated subscriber can escalate to full administrator by rewriting wp_options values that govern site registration behavior.

Affected Products

• Industrial theme for WordPress, versions up to and including 1.7.8
• WordPress sites permitting user registration or subscriber accounts
• Sites distributing the theme via ThemeForest

Discovery Timeline

• 2025-03-14 - CVE-2024-13376 published to the National Vulnerability Database
• 2026-06-17 - Last updated in the NVD database

Technical Details for CVE-2024-13376

Vulnerability Analysis

The Industrial theme registers the _ajax_get_total_content_import_items() handler through WordPress's AJAX interface. The handler processes requests from any authenticated user because it is hooked to wp_ajax_ without an accompanying permission check. Once inside the function, the code reaches option-writing logic that accepts caller-supplied parameters. An attacker with a valid session cookie can call the endpoint and overwrite entries in the wp_options table.

The practical exploitation path targets two options: users_can_register and default_role. Setting users_can_register to 1 opens the WordPress registration form. Setting default_role to administrator grants each new registrant full site privileges. The attacker then registers a new account through wp-login.php?action=register and receives administrator rights.

Root Cause

The root cause is a missing capability check inside an authenticated AJAX handler. WordPress requires developers to gate privileged operations with current_user_can() and to validate nonces with check_ajax_referer(). The theme performs neither validation before invoking option updates, so subscriber-level authorization is sufficient to reach administrative functionality.

Attack Vector

Exploitation requires network access to the target site and a valid low-privilege account. The attacker registers or acquires a subscriber account, obtains a session cookie, then issues a POST request to /wp-admin/admin-ajax.php with action=_ajax_get_total_content_import_items and parameters that trigger the arbitrary option update. After flipping the registration options, the attacker registers a fresh administrator account and logs in. No user interaction is required from existing site administrators.

See the Wordfence Vulnerability Report for additional technical context.

Detection Methods for CVE-2024-13376

Indicators of Compromise

• Unexpected changes to the users_can_register or default_role values in wp_options
• New administrator accounts created shortly after subscriber logins
• POST requests to admin-ajax.php containing action=_ajax_get_total_content_import_items
• Registrations originating from IP addresses that previously authenticated as subscribers

Detection Strategies

• Audit the wp_options table for drift on default_role, users_can_register, siteurl, and home
• Correlate WordPress user creation events with prior low-privilege AJAX activity from the same client
• Alert on any invocation of the _ajax_get_total_content_import_items action by non-administrator users
• Review web server access logs for POST requests to admin-ajax.php with anomalous action parameters

Monitoring Recommendations

• Enable WordPress audit logging for role assignments, option changes, and user registrations
• Forward web server and PHP error logs to a centralized log platform for correlation
• Baseline normal AJAX action usage and alert on new or rarely used actions invoked at scale
• Monitor for administrator logins from IP addresses with no prior administrative history

How to Mitigate CVE-2024-13376

Immediate Actions Required

• Update the Industrial theme to a version later than 1.7.8 once the vendor publishes a fix
• Verify the values of users_can_register and default_role and reset them to expected defaults
• Audit all administrator accounts and remove any that were not provisioned by the site owner
• Force a password reset for existing administrator and subscriber accounts

Patch Information

No fixed version is documented in the published advisory at the time of writing. Consult the ThemeForest product page and the Wordfence Vulnerability Report for the latest vendor guidance and patched release information.

Workarounds

• Disable open user registration by unchecking Settings → General → Membership until a patched version is installed
• Restrict access to admin-ajax.php for unauthenticated and low-privilege sessions using a web application firewall rule
• Deactivate the Industrial theme and switch to a maintained theme if a patch is not available
• Enforce least privilege by removing unused subscriber accounts and disabling self-service registration

# WAF rule concept: block subscriber-level calls to the vulnerable AJAX action
# Example ModSecurity-style pseudo-rule
SecRule REQUEST_URI "@endsWith /wp-admin/admin-ajax.php" \
  "chain,deny,status:403,id:1013376,msg:'Block CVE-2024-13376 exploit attempt'"
  SecRule ARGS:action "@streq _ajax_get_total_content_import_items"