The plugin does not sanitise and escape the tab parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting
https://example.com/wp-admin/admin.php?page=cf7skins&tab;='><img+src+onerror%3Dalert(1)> (requires the Contact Form 7 plugin to be installed)
CPE | Name | Operator | Version |
---|---|---|---|
contact-form-7-skins | lt | 2.5.1 |