CVE-2026-1441
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| graylog | graylog | 2.2.3 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know