vCita CRM and Lead Management Plugin for WordPress Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the CRM and Lead Management by vCita plugin for WordPress, affecting all versions through 2.7.4. The vulnerability arises from inadequate input sanitization and output escaping on user-supplied attributes in the 'vCitaMeetingScheduler' and 'vCitaSchedulingCalendar' shortcodes. This flaw allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages, which are executed when users access the affected pages.

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 'vCitaMeetingScheduler' or 'vCitaSchedulingCalendar' shortcodes to inject scripts. The absence of proper sanitization and escaping on the injected attributes enables the execution of the scripts when the page is viewed.

Remediation

Users are advised to update the vCita CRM and Lead Management plugin to version 2.7.5 or later.