CVE-2026-28055: Themerex M.williamson

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX M.Williamson williamson allows PHP Local File Inclusion.This issue affects M.Williamson: from n/a through <= 1.2.11.

Affected products

• Themerex M.williamson: up to and including 1.2.11

Published 2026-03-05. Last modified 2026-06-17.