CVE-2026-23617
Received Received - Intake
Stored XSS in GFI MailEssentials AI Spam Keyword Interface

Publication date: 2026-02-19

Last updated on: 2026-02-20

Assigner: VulnCheck

Description
GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Spam Keyword Checking (Body) conditions interface. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pvGeneral$TXB_Condition parameter to /MailEssentials/pages/MailSecurity/ASKeywordChecking.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.
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Meta Information
Published
2026-02-19
Last Modified
2026-02-20
Generated
2026-06-16
AI Q&A
2026-02-19
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23617
EUVD
EUVD-2026-8327
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gfi mailessentials to 22.4 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue found in GFI MailEssentials AI versions prior to 22.4. It occurs in the Spam Keyword Checking (Body) conditions interface, where an authenticated user can input HTML or JavaScript code into a specific parameter. This malicious code is then stored and later executed within the management interface when rendered, allowing script execution in the context of a logged-in user.

Impact Analysis

The vulnerability allows an authenticated user to execute arbitrary scripts within the management interface. This can lead to unauthorized actions being performed with the privileges of the logged-in user, potentially compromising the integrity and security of the system. It may enable attackers to steal sensitive information, manipulate data, or perform other malicious activities within the affected application.

Compliance Impact

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