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.
CWE-359 Exposure of Private Personal Information to an Unauthorized Actor