CVE-2024-30537: WPC Badge Management Auth Bypass Flaw

CVE-2024-30537 Overview

CVE-2024-30537 is a Missing Authorization vulnerability [CWE-862] in the WPClever WPC Badge Management for WooCommerce plugin. The flaw affects all versions up to and including 2.4.0. An authenticated attacker with low privileges can perform actions restricted to higher-privileged roles because the plugin fails to enforce proper capability checks on sensitive operations. Successful exploitation compromises confidentiality, integrity, and availability of the WooCommerce store.

Critical Impact
A low-privileged authenticated user can bypass access controls in WPC Badge Management for WooCommerce and manipulate badge configurations or plugin data across the WordPress site.

Affected Products

WPClever WPC Badge Management for WooCommerce versions up to and including 2.4.0
WordPress sites running WooCommerce with the vulnerable plugin installed
Any e-commerce deployment relying on the affected plugin for product badge management

Discovery Timeline

2024-06-09 - CVE-2024-30537 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-30537

Vulnerability Analysis

The vulnerability is a Broken Access Control issue in the WPC Badge Management for WooCommerce plugin. The plugin exposes functionality that should be limited to administrators but does not verify the caller's capabilities before executing sensitive operations. An attacker who holds any authenticated session, including subscriber or customer accounts, can invoke those endpoints and modify plugin state.

The attack requires network access to the WordPress site and low privileges. No user interaction is needed, and the impact spans confidentiality, integrity, and availability. In WooCommerce environments, badge configurations influence how products are marketed and displayed, so tampering can affect the storefront and downstream data integrity.

Root Cause

The root cause is missing authorization enforcement [CWE-862]. Handlers for administrative actions do not call WordPress capability functions such as current_user_can() before mutating data. The plugin also lacks nonce verification and role validation on the affected endpoints, allowing any authenticated user to reach restricted logic.

Attack Vector

An attacker authenticates to the WordPress site using any low-privileged account. The attacker then issues crafted HTTP requests to the plugin's action handlers, such as admin-ajax.php actions or plugin-defined endpoints. Because the plugin skips capability checks, the requests execute successfully and alter badge configurations or related plugin data. See the Patchstack Vulnerability Report for advisory details.

Detection Methods for CVE-2024-30537

Indicators of Compromise

Unexpected changes to WooCommerce product badge configurations or plugin settings entries in wp_options or plugin-specific tables
Requests to admin-ajax.php invoking WPC Badge Management actions from accounts that are not administrators
New or modified plugin data records created outside of documented administrator workflows

Detection Strategies

Review WordPress and web server access logs for POST requests to plugin action endpoints originating from subscriber, customer, or contributor sessions
Correlate authenticated session activity with plugin data changes to identify privilege boundary violations
Enable WordPress audit logging plugins to capture role, capability, and settings modifications tied to the WPC Badge Management plugin

Monitoring Recommendations

Alert on non-administrator accounts triggering admin-ajax.php actions associated with badge or plugin management
Monitor for anomalous storefront changes such as new promotional badges appearing without a corresponding admin workflow
Track outbound requests and modifications during suspected exploitation windows to identify follow-on activity

How to Mitigate CVE-2024-30537

Immediate Actions Required

Update WPC Badge Management for WooCommerce to a version later than 2.4.0 that resolves the missing authorization issue
Audit user accounts and remove or downgrade unnecessary low-privileged accounts that could be leveraged by an attacker
Review plugin configuration and revert unauthorized badge or setting changes discovered during log review

Patch Information

Apply the vendor-provided fix released after version 2.4.0. Consult the Patchstack Vulnerability Report for the fixed version reference and vendor guidance.

Workarounds

Deactivate the WPC Badge Management for WooCommerce plugin until the patched version is deployed
Restrict registration on the WordPress site to reduce the pool of low-privileged accounts an attacker could abuse
Deploy a Web Application Firewall (WAF) rule to block unauthenticated or low-privileged requests to the plugin's action endpoints

bash

# Configuration example: block non-admin access to plugin AJAX actions at the WAF layer
# Example ModSecurity rule to deny badge management actions unless the user is an administrator
SecRule REQUEST_URI "@contains /wp-admin/admin-ajax.php" \
    "chain,phase:2,deny,status:403,id:1030537,msg:'Block WPC Badge Management action for non-admin users'"
    SecRule ARGS:action "@rx ^wpc_badge_" \
        "chain"
        SecRule REQUEST_COOKIES:/wordpress_logged_in_/ "!@rx admin"