CVE-2026-18781: Unknown Drag And Drop Multiple File Upload For Contact Form 7

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

The Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin before 1.3.9.9 does not validate the final name of an uploaded file after stripping characters from it, allowing unauthenticated users to defeat its file type restrictions and execute arbitrary code on the server.

Affected products

• Unknown Drag And Drop Multiple File Upload For Contact Form 7: before 1.3.9.9 (fixed in 1.3.9.9)

Published 2026-08-21. Last modified 2026-08-26.