CVE-2023-5411 MEDIUM

CVE-2023-5411: Funnelforms Free <= 3.4 - Missing Authorization to Post Modification

Vendor Funnelforms
Product Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free
Weakness CWE-862 · Missing authorization
Published November 22, 2023
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 22, 2023 CVE published
April 8, 2026 Record updated