LibreNMS through 26.2.0 contains a stored cross-site scripting vulnerability in legacy PHP template pages that render unescaped SNMP-sourced data fields including BGP peer descriptions, VRF names, process information, and SLA tags. Attackers with device management access or network access to enroll a rogue SNMP device can inject malicious JavaScript that executes when admins view affected routing and device pages, enabling credential theft and CSRF token exfiltration.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 01 Sep 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | LibreNMS through 26.2.0 contains a stored cross-site scripting vulnerability in legacy PHP template pages that render unescaped SNMP-sourced data fields including BGP peer descriptions, VRF names, process information, and SLA tags. Attackers with device management access or network access to enroll a rogue SNMP device can inject malicious JavaScript that executes when admins view affected routing and device pages, enabling credential theft and CSRF token exfiltration. | |
| Title | LibreNMS through 26.2.0 Stored Cross-Site Scripting via SNMP | |
| 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 |
| |
| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-01T11:33:57.100Z
Reserved: 2026-09-01T10:51:59.729Z
Link: CVE-2026-84193
No data.
Status : Received
Published: 2026-09-01T12:17:48.867
Modified: 2026-09-01T12:17:48.867
Link: CVE-2026-84193
No data.
OpenCVE Enrichment
Updated: 2026-09-01T12:30:04Z
Weaknesses