CVE-2026-0829: Unknown Frontend File Manager Plugin

Medium severity, CVSS 5.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The Frontend File Manager Plugin WordPress plugin through 23.5 allows unauthenticated users to send emails through the site without any security checks. This lets attackers use the WordPress site as an open relay for spam or phishing emails to anyone. Attackers can also guess file IDs to access and share uploaded files without permission, exposing sensitive information.

Affected products

• Unknown Frontend File Manager Plugin: up to and including 23.5

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