CVE-2026-23607: GFI MailEssentials AI < 22.4 Anti-Spam Whitelist Description Stored XSS

Published Feb 19, 2026
·
Updated

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Anti-Spam Whitelist management interface. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv1$txtDescription parameter to /MailEssentials/pages/MailSecurity/Whitelist.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

Affected Software

2 affected components
GFI MailEssentials AI<22.4
GFI MailEssentials<22.4

Event History

Feb 19, 2026
CVE Published
via MITRE·05:55 PM
Data Sourced
via MITRE·05:55 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:24 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-23607?

CVE-2026-23607 has been classified as a medium severity vulnerability affecting GFI MailEssentials AI versions prior to 22.4.

2

How do I fix CVE-2026-23607?

To fix CVE-2026-23607, upgrade GFI MailEssentials AI to version 22.4 or later.

3

Who is affected by CVE-2026-23607?

Authenticated users of GFI MailEssentials AI versions prior to 22.4 are affected by CVE-2026-23607 due to the stored cross-site scripting vulnerability.

4

What type of vulnerability is CVE-2026-23607?

CVE-2026-23607 is a stored cross-site scripting (XSS) vulnerability located in the Anti-Spam Whitelist management interface.

5

What can an attacker do with CVE-2026-23607?

An attacker can exploit CVE-2026-23607 to inject malicious HTML or JavaScript code into the Anti-Spam Whitelist management interface.

Contact

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