In the module "PrestaBlog" (prestablog) version 4.4.7 and before from HDclic for PrestaShop, a guest can perform SQL injection. The script ajax slider_positions.php has a sensitive SQL call that can be executed with a trivial http call and exploited to forge a SQL injection.
https://security.friendsofpresta.org/modules/2023/10/26/prestablog.html