Advisories for Composer/Yikesinc/Yikes-Inc-Easy-Mailchimp-Extender package

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in YIKES, Inc. Easy Forms for Mailchimp plugin <= 6.8.8 versions.

The Easy Forms for Mailchimp WordPress plugin before 6.8.9 does not sanitise and escape some of its from parameters, 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 Easy Forms for Mailchimp WordPress plugin through 6.8.8 does not sanitise and escape a parameter before outputting it back in the page when the debug option is enabled, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

The Easy Forms for Mailchimp WordPress plugin before 6.8.8 does not sanitise and escape some parameters before outputting them back in the response, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The Easy Forms for Mailchimp WordPress plugin before 6.8.7 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

A vulnerability classified as problematic has been found in yikes-inc-easy-mailchimp-extender Plugin up to 6.8.5. This affects an unknown part of the file admin/partials/ajax/add_field_to_form.php. The manipulation of the argument field_name/merge_tag/field_type/list_id leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 6.8.6 is able to address this issue. The name of the patch is 3662c6593aa1bb4286781214891d26de2e947695. It is recommended to upgrade the affected component. The associated identifier …

The Easy Forms for Mailchimp WordPress plugin does not sanitise and escape the field_name and field_type parameters before outputting them back in attributes, leading to Reflected Cross-Site Scripting issues