The GigPress WordPress plugin through 2.3.28 does not validate and escape some of its shortcode attributes before using them in SQL statement/s, which could allow any authenticated users, such as subscriber to perform SQL Injection attacks

The GigPress WordPress plugin through 2.3.29 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 unfilteredhtml capability is disallowed (for example in multisite setup)

The gigpress plugin before 2.3.11 for WordPress has SQL injection in the admin area, a different vulnerability than CVE-2015-4066.

Multiple SQL injection vulnerabilities in admin/handlers.php in the GigPress plugin before 2.3.9 for WordPress allow remote authenticated users to execute arbitrary SQL commands via the (1) showartistid or (2) showvenueid parameter in an add action in the gigpress.php page to wp-admin/admin.php.