sh1zen vulnerabilities and threats

The WP Optimizer plugin for WordPress is vulnerable to SQL Injection via the 's' parameter in all versions up to and including 2.5.0. This is due to an unsafe subquery-detection branch in the Query::parse_key_compare_field() method that, when the user-supplied value matches the regex ^[(\s]*SELECT\s+, wraps the value in parentheses and embeds it directly into the SQL string without any escaping or quoting. While the normal LIKE code path correctly uses esc_sql($wpdb->esc_like(...)) and wraps the value in single quotes, this branch completely bypasses those protections. Because the attack payload (SELECT ...) contains no single quotes, WordPress's wp_magic_quotes() provides no protection. This makes it possible for authenticated attackers with administrator-level access to inject arbitrary SQL subqueries — including time-based blind payloads — that can be used to extract sensitive information from the database.

The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.1.9 via the move_file function. This is due to insufficient file type validation during chunked upload handling. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

The Multi Uploader for Gravity Forms WordPress plugin up to version 1.1.8 contains a missing authorization vulnerability that allows unauthenticated attackers to delete arbitrary media attachments. This occurs because the deletion function lacks proper capability checks and exposes a nonce on public pages, enabling permanent media library destruction.

The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the 'plupload_ajax_delete_file' function in all versions up to, and including, 1.1.7. This makes it possible for unauthenticated attackers to delete arbitrary files on the server.

Cross-Site Request Forgery (CSRF) vulnerability in sh1zen WP Optimizer wp-optimizer allows SQL Injection.This issue affects WP Optimizer: from n/a through <= 2.5.0.

Unrestricted Upload of File with Dangerous Type vulnerability in sh1zen Multi Uploader for Gravity Forms gf-multi-uploader allows Upload a Web Shell to a Web Server.This issue affects Multi Uploader for Gravity Forms: from n/a through <= 1.1.3.