CVE-2026-18324 HIGH

CVE-2026-18324: Forminator Forms <= 1.57.0.1 - Unauthenticated Stored Cross-Site Scripting via Rich-Text Textarea Field

Vendor Wpmudev
Product Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Weakness CWE-79 · XSS
Published August 28, 2026
Last update August 28, 2026

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Rich-Text Textarea Field in all versions up to, and including, 1.57.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the targeted Textarea field has the Rich-Text editor option enabled.

Explanation of Vulnerability in Simple Terms

02Summary

Forminator Forms versions up to 1.57.0.1 contain a cross-site scripting (XSS) vulnerability that allows unauthenticated attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects the form builder's handling of user input and can impact site visitors across the network. Site administrators should update to a version newer than 1.57.0.1 immediately.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that executes in other users' browsers when they view affected forms.

Potential impact on your site

04Site Impact

Visitors to your site may have their sessions hijacked, credentials stolen, or be redirected to malicious sites.

Conditions required to exploit

05Prerequisites

No authentication or user interaction required; attacker can exploit this remotely over the network.

Key dates

06Disclosure timeline

August 28, 2026 CVE published

Related vulnerabilities

08Related CVE