CVE-2024-31430: WooCommerce BEAR Plugin CSRF Vulnerability

CVE-2024-31430 Overview

CVE-2024-31430 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] affecting two WordPress plugins developed by Pluginus.Net: WOLF – WordPress Posts Bulk Editor and Manager Professional, and BEAR – Bulk Editor and Products Manager Professional for WooCommerce. The flaw allows attackers to trick authenticated administrators into executing unauthorized state-changing actions on the WordPress site. Exploitation requires user interaction, typically through a malicious link or crafted web page. The vulnerability impacts WOLF versions up to and including 1.0.8.1, and BEAR versions up to and including 1.1.4.1.

Critical Impact

An attacker who successfully lures a logged-in administrator to a malicious page can perform bulk post or product modifications, leading to full compromise of site content integrity, confidentiality, and availability.

Affected Products

• WOLF – WordPress Posts Bulk Editor and Manager Professional (versions up to 1.0.8.1)
• BEAR – Bulk Editor and Products Manager Professional for WooCommerce by Pluginus.Net (versions up to 1.1.4.1)
• WordPress sites running either of the affected Pluginus.Net plugins

Discovery Timeline

• 2024-04-10 - CVE-2024-31430 published to NVD
• 2026-04-28 - Last updated in NVD database

Technical Details for CVE-2024-31430

Vulnerability Analysis

The vulnerability stems from missing or improperly validated anti-CSRF tokens in administrative endpoints exposed by the WOLF and BEAR plugins. Both plugins provide bulk editing functionality that performs sensitive state-changing operations on posts and WooCommerce products. Because these handlers do not verify the origin of incoming requests, an attacker can craft a malicious HTML form or JavaScript payload that submits forged requests when an authenticated administrator visits a controlled page.

The attack abuses the administrator's authenticated session cookie, which the browser automatically attaches to requests sent to the WordPress site. This allows the forged request to execute with full administrative privileges.

Root Cause

The root cause is the absence of proper WordPress nonce verification (via functions such as wp_verify_nonce() or check_admin_referer()) on plugin action handlers. Without nonce validation, the plugins cannot distinguish between legitimate requests originating from the WordPress admin interface and forged requests issued from third-party origins.

Attack Vector

Exploitation occurs over the network and requires user interaction. An attacker hosts a malicious page containing an auto-submitting form or fetch request targeting the vulnerable plugin endpoint. When a logged-in WordPress administrator visits the page, the browser submits the request with valid session cookies. The plugin processes the request as authentic, executing bulk modifications against posts or WooCommerce products. Given the bulk editing nature of these plugins, a single forged request can alter or delete large volumes of content.

For technical details, refer to the Patchstack advisory for WOLF and the Patchstack advisory for BEAR.

Detection Methods for CVE-2024-31430

Indicators of Compromise

• Unexpected bulk modifications to WordPress posts or WooCommerce products without corresponding admin user activity in the audit log
• HTTP POST requests to WOLF or BEAR plugin action endpoints originating from external Referer headers
• Administrative actions logged immediately after an administrator clicked an external link or visited an untrusted site
• Sudden changes to product pricing, inventory, post status, or taxonomy assignments in bulk

Detection Strategies

• Inspect web server access logs for POST requests to plugin endpoints where the Referer header points to an external domain
• Correlate WordPress admin session activity with content modification events to identify anomalous bulk operations
• Deploy a Web Application Firewall (WAF) rule that flags requests to plugin endpoints lacking a valid WordPress nonce parameter

Monitoring Recommendations

• Enable a WordPress audit logging plugin to capture bulk edit events with originating IP, user, and referer metadata
• Forward WordPress and web server logs to a centralized SIEM for correlation and alerting
• Monitor for spikes in post_modified or WooCommerce product update events outside normal business hours

How to Mitigate CVE-2024-31430

Immediate Actions Required

• Update WOLF to a version newer than 1.0.8.1 and BEAR to a version newer than 1.1.4.1 as soon as the vendor publishes a patched release
• If no patched version is available, deactivate and remove both plugins until a fix is confirmed
• Require administrators to log out of WordPress sessions before browsing untrusted sites
• Audit recent bulk edit activity on posts and WooCommerce products for unauthorized changes

Patch Information

At the time of NVD publication, the affected versions are WOLF up to 1.0.8.1 and BEAR up to 1.1.4.1. Site operators should consult the Pluginus.Net vendor channels and the Patchstack advisories referenced above to confirm the availability of a fixed release before reactivating the plugins.

Workarounds

• Restrict access to the WordPress admin interface using IP allow-listing at the web server or WAF layer
• Enforce browser isolation or a dedicated administrative browser profile that does not visit external sites
• Deploy a WAF rule that requires a valid _wpnonce parameter on requests to plugin action endpoints
• Implement SameSite=Strict cookies for WordPress administrative sessions where compatible