The Interactive Contact Form and Multi Step Form Builder WordPress plugin before 3.4 does not sanitise and escape some parameters, which could allow unauthenticated users to perform Cross-Site Scripting attacks

The Funnelforms Free plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.4. This is due to missing or incorrect nonce validation on the fnsf_delete_posts function. This makes it possible for unauthenticated attackers to delete arbitrary posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Funnelforms Free plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.4. This is due to missing or incorrect nonce validation on the fnsf_copy_posts function. This makes it possible for unauthenticated attackers to create copies of arbitrary posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE-2023-5990 appears to be a duplicate of this issue.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_copy_posts function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to create copies of arbitrary posts.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_delete_posts function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to delete arbitrary posts, including administrator posts, and posts not related to the Funnelforms Free plugin. CVE-2023-5990 appears to be a duplicate of this issue.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_trigger_dark_mode function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to enable or disable the dark mode plugin setting.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_save_post function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify certain post values. Note that the extent of modification is limited due to fixed values passed to the wp_update_post function.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_add_category function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to add new categories.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_delete_category function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to delete categories.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_update_category function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the Funnelforms category for a given post ID.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_test_mail function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to send test emails to an arbitrary email address.

The Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor WordPress plugin before 3.4.2 does not have CSRF checks on some of its form actions such as deletion and duplication, which could allow attackers to make logged in admin perform such actions via CSRF attacks

The Funnelforms Free plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 3.7.3.2 via the 'af2DeleteFontFile' function. This is due to the plugin not properly validating a file or its path prior to deleting it. This makes it possible for authenticated attackers, with administrator-level access and above, to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible.