MarketKing WooCommerce Multivendor Marketplace Solution Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the MarketKing - Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress, affecting all versions through 1.9.80. The vulnerability arises from inadequate input sanitization and output escaping, allowing authenticated attackers with Shop Manager-level permissions or higher to inject arbitrary scripts. These scripts are executed when a user accesses the affected page. This issue is present in multi-site installations where unfiltered_html has been disabled.

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.

Remediation

Users are advised to update the plugin to version 2.0.0 or later.