CVE-2024-9891: Zluck Multiline Files For Contact Form 7

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Multiline files upload for contact form 7 plugin for WordPress is vulnerable to unauthorized plugin deactivation due to a missing capability check on the mfcf7_zl_custom_handle_deactivation_plugin_form_submission() function in all versions up to, and including, 2.8.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to deactivate the plugin and send a custom reason from the site.

Affected products

• Zluck Multiline Files For Contact Form 7: up to and including 2.8.1

Published 2024-10-16. Last modified 2026-06-17.