Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.44.2 - Unauthenticated PHP Object Injection (PHAR) Triggered via Administrator Form Submission Deletion

7.5
Deserialization of Untrusted Data
CVE CVE-2025-6464
CVSS 7.5 (High)
Publicly Published July 1, 2025
Last Updated July 2, 2025
Researcher Phat RiO

Description

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.44.2 via deserialization of untrusted input in the 'entry_delete_upload_files' function. This makes it possible for unauthenticated attackers to inject a PHP Object through a PHAR file. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. Deserialization occurs when the form submission is deleted, whether by an Administrator or via auto-deletion determined by plugin settings.

References

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Vulnerability Details for Forminator Forms – Contact Form, Payment Form & Custom Form Builder

Software Type Plugin
Software Slug forminator (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.44.3, or a newer patched version
Affected Version
  • <= 1.44.2
Patched Version
  • 1.44.3

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

# Title CVE ID CVSS Researchers Date
1 Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.57.1 - Unauthenticated Payment Bypass CVE-2026-82220 5.3 Ahmed Hassan August 28, 2026
2 Forminator Forms – Contact Form, Payment Form & Custom Form Builder < 1.57.0.7 - Authenticated (Custom Role+) Privilege Escalation CVE-2026-19222 6.3 Thanh Lam Tang August 28, 2026
3 Forminator Forms – Contact Form, Payment Form & Custom Form Builder < 1.57.1 - Unauthenticated Privilege Escalation CVE-2026-19220 7.3 Jakub Herman August 28, 2026
4 Forminator Forms <= 1.57.0.1 - Unauthenticated Stored Cross-Site Scripting via Rich-Text Textarea Field CVE-2026-18324 7.2 daroo August 27, 2026
5 Forminator Forms – Contact Form, Payment Form & Custom Form Builder < 1.57.0.5 - Authenticated (Administrator+) Remote Code Execution CVE-2026-19221 7.2 Jakub Herman August 27, 2026
6 Forminator Forms <= 1.57.0 - Unauthenticated DOM-Based Cross-Site Scripting via 'error_description' Parameter CVE-2026-18328 7.2 Adrien Brunner August 24, 2026
7 Forminator Forms <= 1.57.0.2 - Unauthenticated Stored Cross-Site Scripting via Radio Field (Save and Continue Draft) CVE-2026-18323 7.2 daroo August 24, 2026
8 Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.57.0 - Unauthenticated PHP Object Injection CVE-2026-66583 8.1 Ahmed Hassan August 19, 2026
9 Forminator Forms <= 1.56.1 - Unauthenticated Arbitrary File Upload via Forged Upload Field Configuration CVE-2026-15748 9.8 daroo August 17, 2026
10 Forminator Forms <= 1.55.0.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'draft' Parameter CVE-2026-12998 5.3 se1en August 15, 2026

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