CVE-2026-1441
Received Received - Intake
Reflected XSS in Graylog 2.2.3 Console Enables Script Execution

Publication date: 2026-02-18

Last updated on: 2026-02-18

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
Reflected Cross-Site Scripting (XSS) vulnerability in the Graylog Web Interface console, version 2.2.3, caused by a lack of proper sanitization and escaping in HTML output. Several endpoints include segments of the URL directly in the response without applying output encoding, allowing an attacker to inject and execute arbitrary JavaScript code when a user visits a specially crafted URL. Exploitation of this vulnerability may allow script execution in the victim's browser and limited manipulation of the affected user's session context, through the  '/system/index_sets/' endpoint.
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Meta Information
Published
2026-02-18
Last Modified
2026-02-18
Generated
2026-06-16
AI Q&A
2026-02-18
EPSS Evaluated
2026-06-15
NVD
CVE-2026-1441
EUVD
EUVD-2026-8069
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
graylog graylog 2.2.3
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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 Reflected Cross-Site Scripting (XSS) issue found in the Graylog Web Interface console, version 2.2.3. It occurs because the application does not properly sanitize and escape HTML output. Specifically, some endpoints include parts of the URL directly in the response without encoding them, which allows an attacker to inject and execute arbitrary JavaScript code when a user visits a specially crafted URL.

The vulnerability affects the '/system/index_sets/' endpoint and can lead to script execution in the victim's browser.

Impact Analysis

Exploitation of this vulnerability may allow an attacker to execute arbitrary JavaScript code in the victim's browser. This can lead to limited manipulation of the affected user's session context, potentially allowing the attacker to hijack the user's session or perform actions on their behalf within the Graylog Web Interface.

Compliance Impact

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