The Migrate Users WordPress plugin through 1.0.1 does not sanitise or escape its Delimiter option before outputting in a page, leading to a Stored Cross-Site Scripting issue. Furthermore, the plugin does not have CSRF check in place when saving its options, allowing the issue to be exploited via a CSRF attack.

Cross-site scripting (XSS) vulnerability in the Migrate module 7.x-2.x before 7.x-2.8 for Drupal, when the migrate_ui submodule is enabled, allows user-assisted remote attackers to inject arbitrary web script or HTML via a destination field label.