LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the port group name is not sanitized, allowing attackers with admin privileges to perform Stored Cross-Site Scripting (XSS) attacks. When a user adds a port group, an HTTP POST request is sent to the Request-URI "/port-groups". The name of the newly created port group is stored in the value of the name parameter. After the port group is created, the entry is displayed along with relevant buttons such as Edit and Delete. This issue has been fixed in version 26.2.0.
Metrics
Affected Vendors & Products
References
History
Fri, 20 Feb 2026 17:15:00 +0000
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ssvc
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Fri, 20 Feb 2026 16:30:00 +0000
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| CPEs | cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:* | |
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cvssV3_1
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Fri, 20 Feb 2026 10:15:00 +0000
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Librenms
Librenms librenms |
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| Vendors & Products |
Librenms
Librenms librenms |
Fri, 20 Feb 2026 03:15:00 +0000
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| Description | LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the port group name is not sanitized, allowing attackers with admin privileges to perform Stored Cross-Site Scripting (XSS) attacks. When a user adds a port group, an HTTP POST request is sent to the Request-URI "/port-groups". The name of the newly created port group is stored in the value of the name parameter. After the port group is created, the entry is displayed along with relevant buttons such as Edit and Delete. This issue has been fixed in version 26.2.0. | |
| Title | LibreNMS has Stored Cross-Site Scripting via unsanitized /port-groups name | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-02-20T02:26:32.702Z
Updated: 2026-02-20T15:53:20.444Z
Reserved: 2026-02-17T01:41:24.606Z
Link: CVE-2026-26992
Updated: 2026-02-20T15:53:14.607Z
Status : Analyzed
Published: 2026-02-20T03:16:00.990
Modified: 2026-02-20T16:20:34.507
Link: CVE-2026-26992
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