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.
History

Wed, 18 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 18 Feb 2026 13:45:00 +0000

Type Values Removed Values Added
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.
Title Reflected Cross-Site Scripting (XSS) vulnerability in Graylog Web Interface
First Time appeared Graylog
Graylog graylog Web Interface
Weaknesses CWE-79
CPEs cpe:2.3:a:graylog:graylog_web_interface:2.2.3:*:*:*:*:*:*:*
Vendors & Products Graylog
Graylog graylog Web Interface
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: INCIBE

Published: 2026-02-18T13:14:11.570Z

Updated: 2026-02-18T14:12:52.186Z

Reserved: 2026-01-26T13:21:06.202Z

Link: CVE-2026-1441

cve-icon Vulnrichment

Updated: 2026-02-18T14:11:57.744Z

cve-icon NVD

Status : Received

Published: 2026-02-18T14:16:06.590

Modified: 2026-02-18T14:16:06.590

Link: CVE-2026-1441

cve-icon Redhat

No data.