The WordPress WP-Advanced-Search WordPress plugin before 3.3.9.3 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 even when the unfiltered_html capability is disallowed (for example in multisite setup).
The Modal Portfolio plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 1.7.4.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
The WP-Advanced-Search WordPress plugin before 3.3.9.2 does not sanitize and escape the t parameter before using it in a SQL statement, allowing unauthenticated users to perform SQL injection attacks
The Import feature in the wp-advanced-search plugin 3.3.6 for WordPress is vulnerable to authenticated SQL injection via an uploaded .sql file. An attacker can use this to execute SQL commands without any validation.