Sina Extension for Elementor Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Sina Extension for Elementor plugin for WordPress, affecting all versions through 3.5.91. The issue arises in the Sina Image Differ widget, where inadequate input sanitization and output escaping of user-supplied attributes allow authenticated attackers with contributor-level access or higher to inject arbitrary scripts. These scripts are executed when a user accesses the compromised 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 use the Sina Image Differ widget. After injecting a script through the widget's settings, the script will be executed when the page is viewed.

Remediation

Users are advised to update the plugin to version 3.6.0 or later.