The ACF Photo Gallery Field plugin for WordPress is vulnerable to unauthorized modification of data due to an insufficient restriction on the 'apg_profile_update' function in versions up to, and including, 1.9. This makes it possible for authenticated attackers, with subscriber-level permissions or above, to update the user metas arbitrarily. The meta value can only be a string.

The ACF Photo Gallery Field WordPress plugin before 1.7.5 does not sanitise and escape the post parameter in the includes/acf_photo_gallery_metabox_edit.php file before outputing back in an attribute, leading to a Reflected Cross-Site Scripting issue