CVE-2023-5386 MEDIUM

CVE-2023-5386: Funnelforms Free <= 3.4 - Missing Authorization to Arbitrary Post Deletion

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

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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_delete_posts function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to delete arbitrary posts, including administrator posts, and posts not related to the Funnelforms Free plugin. CVE-2023-5990 appears to be a duplicate of this issue.

Key dates

02Disclosure timeline

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