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
References
History
Wed, 02 Sep 2026 10:45:00 +0000
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| Metrics |
ssvc
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Tue, 01 Sep 2026 11:45:00 +0000
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| 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 |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-01T11:33:57.100Z
Updated: 2026-09-02T14:49:09.536Z
Reserved: 2026-09-01T10:51:59.729Z
Link: CVE-2026-84193
Updated: 2026-09-02T14:48:45.640Z
Status : Deferred
Published: 2026-09-01T12:17:48.867
Modified: 2026-09-08T20:18:59.270
Link: CVE-2026-84193
No data.