description: In the module "Newsletter Popup PRO with Voucher/Coupon code" (newsletterpop) before version 2.6.1 from Active Design for PrestaShop, a guest can perform SQL injection in affected versions. The method `NewsletterpopsendVerificationModuleFrontController::checkEmailSubscription()` has sensitive SQL calls that can be executed with a trivial http call and exploited to forge a SQL injection.