CVE-2026-23609

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Perimeter SMTP Servers configuration page. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv3$txtDescription parameter to /MailEssentials/pages/MailSecurity/PerimeterSMTPServers.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
Feb 19, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-23609: Medium severity, CVSS 5.4 | Vulnix