CVE-2023-4596 Forminator <= 1.24.6 - Unauthenticated Arbitrary File Upload

What is CVE-2023-4596?

CVE-2023-4596 is a critical vulnerability in wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder, published on 30 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to file type validation occurring after a file has been uploaded to the server in the upload_post_image() function in versions up to, and including, 1.24.6. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Weakness: CWE-434

Which versions are affected by CVE-2023-4596?

It affects 1 product.

Products include Incsub Forminator.

How do I fix CVE-2023-4596?

No fix has been published for CVE-2023-4596 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-4596 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4596 exists.

Public exploit code: 1 Nuclei template and 3 proofs of concept on GitHub.

Other vulnerabilities in wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder

• CVE-2025-6463 Path traversal in Forminator Forms – Contact Form, Payment Form & Custom Form Builder High 8.8
• CVE-2025-6464 Deserialization in Forminator Forms – Contact Form, Payment Form & Custom Form Builder High 7.5
• CVE-2024-7389 Forminator <= 1.29.1 - HubSpot Developer API Key Sensitive Information Exposure High 7.5
• CVE-2024-31077 SQL injection in Forminator High 7.2
• CVE-2024-1794 Forminator <= 1.29.0 - Unauthenticated Stored Cross-Site Scripting via File Upload High 7.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-g9m5-p82f-mqgm.