Graylog
CVE-2026-1440
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
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/pipelines/' endpoint.
AnalysisAI
Reflected XSS in Graylog Web Interface version 2.2.3 fails to properly sanitize user-supplied input in the /system/pipelines/ endpoint, enabling attackers to inject malicious JavaScript through specially crafted URLs. An attacker can execute arbitrary scripts in a victim's browser and potentially hijack user sessions when the victim visits a malicious link. …
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Vulnerability AssessmentAI
| Risk Assessment | CVSS 6.1 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker could exploit this vulnerability to script execution in the victim's browser and limited manipulation of the affecte. |
| Remediation | Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …
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Improper session invalidation in Graylog Web Interface 2.2.3 allows attackers to maintain access through expired session
Graylog is a free and open log management platform. In versions 6.2.0 to before 6.2.4 and 6.3.0-alpha.1 to before 6.3.0-
Graylog is a free and open log management platform. Rated high severity (CVSS 8.0), this vulnerability is remotely explo
Graylog is a free and open log management platform. Rated medium severity (CVSS 6.5), this vulnerability is remotely exp
Graylog 2.2.3 contains an insecure direct object reference (IDOR) vulnerability in its user API endpoint that allows aut
Reflected XSS in Graylog 2.2.3's web interface allows remote attackers to execute arbitrary JavaScript in a victim's bro
Graylog Web Interface 2.2.3 contains a reflected XSS vulnerability in the /system/index_sets/ endpoint where unsanitized
Graylog Web Interface 2.2.3 contains a reflected XSS vulnerability in the /alerts/ endpoint where unencoded URL paramete
Graylog Web Interface 2.2.3 contains a reflected XSS vulnerability in the /system/nodes/ endpoint where unescaped URL pa
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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