CVE-2026-44826 Vvveb: Vvveb CMS — Negative-quantity cart manipulation allows creation of orders with negative grand totals

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.2, Vvveb CMS does not validate the sign of the quantity parameter on the cart-add endpoint. Submitting a negative integer is accepted by the server and treated as a normal positi...