CVE-2026-23613
Received Received - Intake

Stored XSS in GFI MailEssentials URI DNS Blocklist Page

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 URI DNS Blocklist configuration page. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv1$TXB_URIs parameter to /MailEssentials/pages/MailSecurity/uridnsblocklist.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
2026-07-06
AI Q&A
2026-02-19
EPSS Evaluated
2026-07-04
NVD
CVE-2026-23613
EUVD
EUVD-2026-8396

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 on the URI DNS Blocklist configuration page, where an authenticated user can input malicious HTML or JavaScript code into a specific parameter. This code is then stored and later executed in the context of a logged-in user's management interface, potentially allowing unauthorized script execution.

Impact Analysis

The impact of this vulnerability includes the potential for an attacker with authenticated access to execute arbitrary scripts within the management interface. This can lead to unauthorized actions being performed, theft of sensitive information, session hijacking, or manipulation of the management interface, compromising the security and integrity of the system.

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