GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Mail Monitoring rule creation endpoint. An authenticated user can supply HTML/JavaScript in the JSON \"name\" field to /MailEssentials/pages/MailSecurity/MailMonitoring.aspx/Save, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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