CVE-2026-22421: Ancorathemes Quantum

High severity, CVSS 8.1. EPSS: 0.5% 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 AncoraThemes Quantum quantum allows PHP Local File Inclusion.This issue affects Quantum: from n/a through <= 1.0.

Affected products

• Ancorathemes Quantum: up to and including 1.0

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