The Website Contact Form With File Upload plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'upload_file()' function in versions up to, and including, 1.3.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.
The Simple User Registration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3. This is due to insufficient restrictions on user meta values that can be supplied during registration. This makes it possible for unauthenticated attackers to register as an administrator.
The Easy Quiz Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wqt-question' shortcode in all versions up to, and including, 2.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Authentication Bypass Using an Alternate Path or Channel vulnerability in N-Media Simple User Registration wp-registration allows Authentication Bypass.This issue affects Simple User Registration: from n/a through <= 6.7.
The Frontend File Manager (versions < 4.0), N-Media Post Front-end Form (versions < 1.1) plugins for WordPress are vulnerable to arbitrary file uploads due to missing file type validation via the `nm_filemanager_upload_file` and `nm_postfront_upload_file` AJAX actions. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.