CVE-2023-5411: Funnelforms

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_save_post function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify certain post values. Note that the extent of modification is limited due to fixed values passed to the wp_update_post function.

Affected products

• Funnelforms Funnelforms: up to and including 3.4

Published 2023-11-22. Last modified 2026-06-17.