In the module "Theme settings" (pk_themesettings) <= 1.8.8 from Promokit.eu for PrestaShop, a guest can download all email collected while SHOP is in maintenance mode. Due to a lack of permissions control, a guest can access the txt file which collect email when maintenance is enable which can lead to leak of personal information.
The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.