In PrestaShop from version 1.5.0.0 and before 1.7.6.6, there is information exposure in the upload directory. The problem is fixed in version 1.7.6.6. A possible workaround is to add an empty index.php file in the upload directory.
In PrestaShop from version 1.6.0.1 and before version 1.7.6.6, the dashboard allows rewriting all configuration variables. The problem is fixed in 1.7.6.6
In PrestaShop from version 1.7.0.0 and before version 1.7.6.6, if a target sends a corrupted file, it leads to a reflected XSS. The problem is fixed in 1.7.6.6
In PrestaShop from version 1.5.0.0 and before version 1.7.6.6, the authentication system is malformed and an attacker is able to forge requests and execute admin commands. The problem is fixed in 1.7.6.6.
The Correos Express addon for PrestaShop 1.6 through 1.7 allows remote attackers to obtain sensitive information, such as a service's owner password that can be used to modify orders via SOAP. Attackers can also retrieve information about orders or buyers.
In PrestaShop between versions 1.7.0.0 and 1.7.6.5, there are improper access controls on product page with combinations, attachments and specific prices. The problem is fixed in 1.7.6.5.