CVE-2025-54692: WooCommerce Membership Auth Bypass Flaw

CVE-2025-54692 Overview

CVE-2025-54692 is a missing authorization vulnerability in the WP Swings Membership For WooCommerce plugin for WordPress. The flaw affects all versions up to and including 2.9.0. The plugin exposes functionality that is not properly constrained by access control lists (ACLs), allowing unauthenticated remote attackers to access restricted features over the network. The vulnerability is tracked under CWE-862: Missing Authorization and has been catalogued by Patchstack.

Critical Impact
Unauthenticated attackers can reach protected plugin functionality remotely, leading to disclosure of confidential membership and customer data on affected WooCommerce stores.

Affected Products

WP Swings Membership For WooCommerce plugin (membership-for-woocommerce)
All versions from initial release through 2.9.0
WordPress sites running WooCommerce with the vulnerable plugin enabled

Discovery Timeline

2025-08-14 - CVE-2025-54692 published to the National Vulnerability Database
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-54692

Vulnerability Analysis

The Membership For WooCommerce plugin exposes one or more endpoints that do not enforce capability or role checks before executing privileged actions. An attacker submits crafted HTTP requests to plugin-registered AJAX, REST, or admin-post handlers without authenticating. The handlers process the request because they fail to validate the caller's permissions through WordPress functions such as current_user_can() or to verify nonces. According to the Patchstack Vulnerability Report, the issue is classified as broken access control with confidentiality impact only.

Root Cause

The root cause is a missing authorization check [CWE-862] in plugin request handlers. WordPress plugins must gate sensitive actions behind capability checks and nonce validation. The vulnerable handlers register callbacks that execute logic returning membership data or invoking membership operations without verifying the requesting user has the required role. This pattern is common when developers rely on the absence of public UI links rather than enforcing server-side authorization.

Attack Vector

An attacker reaches the vulnerable endpoint over the network with no privileges and no user interaction required. The attacker sends a direct HTTP POST or GET request to the WordPress site, targeting the plugin's exposed action hooks such as admin-ajax.php?action=<plugin_action> or REST routes registered by the plugin. The server processes the request as if it were legitimate and returns protected information. Successful exploitation leads to disclosure of membership records, customer data, and configuration details associated with the WooCommerce store.

No verified public exploit code is available at this time. Refer to the Patchstack advisory for additional technical context.

Detection Methods for CVE-2025-54692

Indicators of Compromise

Unauthenticated HTTP requests to /wp-admin/admin-ajax.php referencing actions registered by the membership-for-woocommerce plugin
Unexpected requests to plugin REST namespaces from external IP addresses without a valid authenticated session cookie
Spikes in 200 OK responses to plugin endpoints originating from a single source IP or user agent
Outbound data transfers from the web server that correlate with plugin endpoint access patterns

Detection Strategies

Inspect web server access logs for repeated requests to admin-ajax.php with action parameters tied to the Membership For WooCommerce plugin
Deploy a web application firewall rule that flags unauthenticated requests targeting plugin actions normally restricted to administrators
Run a plugin inventory across managed WordPress sites and flag installations of membership-for-woocommerce at version 2.9.0 or earlier
Correlate WordPress audit logs with WAF telemetry to identify access patterns that bypass the standard admin UI

Monitoring Recommendations

Forward WordPress, WooCommerce, and reverse-proxy logs to a centralized log platform for retention and correlation
Alert on anonymous requests to administrative AJAX or REST endpoints exceeding a defined baseline
Monitor for new files, database modifications, or membership record exports following suspicious endpoint access
Track plugin version state across the fleet and alert when vulnerable versions are detected

How to Mitigate CVE-2025-54692

Immediate Actions Required

Identify all WordPress sites running the Membership For WooCommerce plugin and confirm the installed version
Update the plugin to a fixed release published after version 2.9.0 as soon as the vendor makes it available
Restrict access to wp-admin/admin-ajax.php and plugin REST routes at the WAF or reverse proxy where feasible
Rotate any credentials or API keys that may have been exposed through unauthorized data access

Patch Information

Review the Patchstack Vulnerability Report for the latest fix status. The advisory tracks the affected range as n/a through <= 2.9.0. Apply the vendor patch immediately once published and verify the plugin version reads above 2.9.0 after the update.

Workarounds

Deactivate and remove the Membership For WooCommerce plugin until a patched version is installed
Apply WAF rules that block unauthenticated POST and GET requests to plugin-specific action values
Limit access to the WordPress admin surface using IP allow-listing where business operations permit
Audit membership and customer data exports to identify any unauthorized disclosure during the exposure window

bash

# Configuration example: block unauthenticated admin-ajax requests to plugin actions
# Example nginx snippet
location = /wp-admin/admin-ajax.php {
    if ($arg_action ~* "^mwb_|membership_for_woocommerce") {
        if ($http_cookie !~* "wordpress_logged_in_") {
            return 403;
        }
    }
    include fastcgi_params;
    fastcgi_pass php_upstream;
}