GFI MailEssentials AI Stored Cross-Site Scripting Vulnerability in Keyword Filtering Rule Creation

A stored cross-site scripting vulnerability has been identified in GFI MailEssentials AI versions prior to 22.4. This issue arises in the Keyword Filtering rule creation workflow, where an authenticated user can inject HTML or JavaScript into the Rule Name parameter. The injected script is stored and later executed in the management interface, affecting the logged-in user.

Impact

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

Remediation

Users can upgrade to GFI MailEssentials AI version 22.4 or later to address this vulnerability.