WordPress Institute Management Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Institute Management plugin for WordPress, affecting all versions up to and including 5.5. The issue arises from inadequate input sanitization and output escaping in the 'Enquiry Form Title' setting. This vulnerability allows authenticated attackers with Administrator-level access and above to inject arbitrary web scripts into pages, which are executed when users access the affected pages. The vulnerability is present only 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.