LibreNMS before 26.3.1 contains a stored cross-site scripting vulnerability in legacy PHP templates that output SNMP-sourced and syslog-sourced data without escaping. An attacker who controls a monitored network device can inject arbitrary JavaScript through SNMP interface descriptions or syslog program fields that executes when authenticated users view affected pages.
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Affected Vendors & Products
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History
Tue, 01 Sep 2026 22:00:00 +0000
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ssvc
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Tue, 01 Sep 2026 11:45:00 +0000
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| Description | LibreNMS before 26.3.1 contains a stored cross-site scripting vulnerability in legacy PHP templates that output SNMP-sourced and syslog-sourced data without escaping. An attacker who controls a monitored network device can inject arbitrary JavaScript through SNMP interface descriptions or syslog program fields that executes when authenticated users view affected pages. | |
| Title | LibreNMS before 26.3.1 Stored XSS via SNMP/Syslog Data | |
| First Time appeared |
Librenms
Librenms librenms |
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| Weaknesses | CWE-79 | |
| CPEs | cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Librenms
Librenms librenms |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-01T11:33:56.451Z
Updated: 2026-09-01T15:23:37.083Z
Reserved: 2026-09-01T10:51:59.729Z
Link: CVE-2026-84192
Updated: 2026-09-01T15:23:32.950Z
Status : Received
Published: 2026-09-01T12:17:48.723
Modified: 2026-09-01T16:17:33.330
Link: CVE-2026-84192
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