WPForms Lite Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the WPForms Lite plugin for WordPress, specifically in versions through 1.9.3.1. The issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with Contributor-level access or higher to inject arbitrary scripts into pages. These scripts are executed when a user accesses the affected page.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.

Reproduction

To reproduce this vulnerability, an authenticated user with Contributor-level access or higher can inject scripts via the 'fieldHTML' parameter. This can be done by creating or editing a form and adding a field that allows HTML input. Once the form is saved, the injected script will execute when the form is viewed.

Remediation

Users are advised to update the WPForms Lite plugin to version 1.9.3.2 or later, where this vulnerability has been patched.