CVE-2022-4237: Welcart E-Commerce

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

The Welcart e-Commerce WordPress plugin before 2.8.6 does not validate user input before using it in file_exist() functions via various AJAX actions available to any authenticated users, which could allow users with a role as low as subscriber to perform PHAR deserialisation when they can upload a file and a suitable gadget chain is present on the blog

Affected products

• Welcart Welcart E-Commerce: before 2.8.6 (fixed in 2.8.6)

Published 2023-01-02. Last modified 2026-06-17.