The Login using WordPress Users ( WP as SAML IDP ) plugin for WordPress is vulnerable to time-based SQL Injection via the ‘id’ parameter in all versions up to, and including, 1.15.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

Deserialization of Untrusted Data vulnerability in WebToffee Import Export WordPress Users.This issue affects Import Export WordPress Users: from n/a through 2.5.3.

The UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 1.2.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in WebToffee Import Export WordPress Users.This issue affects Import Export WordPress Users: from n/a through 2.5.2.

The WordPress Users WordPress plugin through 1.4 does not have CSRF check in place when updating its settings, which could allow attackers to make a logged in admin change them via a CSRF attack.

The Export and Import Users and Customers plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'upload_import_file' function in versions up to, and including, 2.4.8. This makes it possible for authenticated attackers with shop manager-level capabilities or above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

The Export and Import Users and Customers plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'hf_update_customer' function called via an AJAX action in versions up to, and including, 2.4.1. This makes it possible for authenticated attackers, with shop manager-level permissions to change user passwords and potentially take over administrator accounts.

The Login using WordPress Users ( WP as SAML IDP ) WordPress plugin before 1.13.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (for example in multisite setup)

The users-customers-import-export-for-wp-woocommerce plugin before 1.3.9 for WordPress allows subscribers to import administrative accounts via CSV.