CVE-2024-6312

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

2024-08-27 00:00
István Márton

Strategic Overview

Status
Patched in 3.7.4.1
Affected Plugin
Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free
Affected Version
<= 3.7.3.2
CVSS
6.5Medium
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE-2024-6312
View all Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free vulnerabilities

At a glance

CVE-2024-6312 is a medium-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor WordPress plugin, affecting versions <= 3.7.3.2. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high integrity, availability impact). Exploitation requires an authenticated account at Administrator level or above. The issue is fixed in version 3.7.4.1; sites on affected versions should update now. Disclosed August 2024, reported by István Márton.

Vulnerability Overview

The Funnelforms Free plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 3.7.3.2 via the 'af2DeleteFontFile' function. This is due to the plugin not properly validating a file or its path prior to deleting it. This makes it possible for authenticated attackers, with administrator-level access and above, to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on integrity, availability.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor <= 3.7.3.2 carries this weakness at af2DeleteFontFile, and reaching it takes an account at Administrator level or above. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor the fix is 3.7.4.1: builds <= 3.7.3.2 are affected, anything from 3.7.4.1 onward is not.

Remediation

Update to version 3.7.4.1, or a newer patched version

How does WordSec protect against this?

An attacker needs Administrator access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor 3.7.4.1 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-6312https://www.wordfence.com/threat-intel/vulnerabilities/id/3e815531-f966-44a1-a037-8077a40c83b0https://nvd.nist.gov/vuln/detail/CVE-2024-6312

Related records

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