CVE-2023-5387 - CVE House

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Status published Medium CVE-2023-5387

Funnelforms Free <= 3.4 - Missing Authorization to Enable/Disable Dark Mode

4.3 CVSS

Vulnerability Description

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_trigger_dark_mode function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to enable or disable the dark mode plugin setting.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Alex Thomas

References

More from funnelforms

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Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free <= 3.7.3.2 - Missing Authorization to Unauthenticated Arbitrary Media Upload

Funnelforms Free <= 3.7.3.2 - Authenticated (Administrator+) Arbitrary File Deletion

Funnelforms Free <= 3.7.3.2 - Authenticated (Administrator+) Arbitrary File Upload

Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free <= 3.7.3.2 - Missing Authorization to Unauthenticated Arbitrary Media Deletion

Funnelforms Free <= 3.7.5.1 - Authenticated (Contributor+) PHP Object Injection

Affected Vendor

funnelforms

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Affected Software

Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free

Vulnerable Versions:

0

Timeline

Official Publish: November 22nd, 2023

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1078 Valid Accounts

T1531 Account Access Removal