Vulnerability Details CVE-2026-26992
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.6%
CVSS Severity
CVSS v3 Score 4.8
Products affected by CVE-2026-26992
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cpe:2.3:a:librenms:librenms:-
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cpe:2.3:a:librenms:librenms:0.1
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cpe:2.3:a:librenms:librenms:1.19
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cpe:2.3:a:librenms:librenms:1.20
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cpe:2.3:a:librenms:librenms:1.20.1
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cpe:2.3:a:librenms:librenms:1.21
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cpe:2.3:a:librenms:librenms:1.22
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cpe:2.3:a:librenms:librenms:1.22.01
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cpe:2.3:a:librenms:librenms:1.23
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cpe:2.3:a:librenms:librenms:1.24
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cpe:2.3:a:librenms:librenms:1.25
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cpe:2.3:a:librenms:librenms:1.26
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cpe:2.3:a:librenms:librenms:1.27
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cpe:2.3:a:librenms:librenms:1.28
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cpe:2.3:a:librenms:librenms:1.29
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cpe:2.3:a:librenms:librenms:1.30
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cpe:2.3:a:librenms:librenms:1.30.01
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cpe:2.3:a:librenms:librenms:1.31
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cpe:2.3:a:librenms:librenms:1.31.01
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cpe:2.3:a:librenms:librenms:1.31.02
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cpe:2.3:a:librenms:librenms:1.31.03
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cpe:2.3:a:librenms:librenms:1.32
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cpe:2.3:a:librenms:librenms:1.32.01
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cpe:2.3:a:librenms:librenms:1.33
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cpe:2.3:a:librenms:librenms:1.33.01
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cpe:2.3:a:librenms:librenms:1.34
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cpe:2.3:a:librenms:librenms:1.35
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cpe:2.3:a:librenms:librenms:1.36
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cpe:2.3:a:librenms:librenms:1.36.01
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cpe:2.3:a:librenms:librenms:1.37
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cpe:2.3:a:librenms:librenms:1.38
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cpe:2.3:a:librenms:librenms:1.39
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cpe:2.3:a:librenms:librenms:1.40
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cpe:2.3:a:librenms:librenms:1.41
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cpe:2.3:a:librenms:librenms:1.42
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cpe:2.3:a:librenms:librenms:1.42.01
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cpe:2.3:a:librenms:librenms:1.43
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cpe:2.3:a:librenms:librenms:1.44
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cpe:2.3:a:librenms:librenms:1.45
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cpe:2.3:a:librenms:librenms:1.46
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cpe:2.3:a:librenms:librenms:1.47
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cpe:2.3:a:librenms:librenms:1.48
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cpe:2.3:a:librenms:librenms:1.48.1
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cpe:2.3:a:librenms:librenms:1.49
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cpe:2.3:a:librenms:librenms:1.50
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cpe:2.3:a:librenms:librenms:1.50.1
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cpe:2.3:a:librenms:librenms:1.51
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cpe:2.3:a:librenms:librenms:1.52
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cpe:2.3:a:librenms:librenms:1.53
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cpe:2.3:a:librenms:librenms:1.53.1
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cpe:2.3:a:librenms:librenms:1.54
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cpe:2.3:a:librenms:librenms:1.55
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cpe:2.3:a:librenms:librenms:1.56
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cpe:2.3:a:librenms:librenms:1.57
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cpe:2.3:a:librenms:librenms:1.58
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cpe:2.3:a:librenms:librenms:1.58.1
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cpe:2.3:a:librenms:librenms:1.59
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cpe:2.3:a:librenms:librenms:1.60
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cpe:2.3:a:librenms:librenms:1.61
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cpe:2.3:a:librenms:librenms:1.62
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cpe:2.3:a:librenms:librenms:1.62.1
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cpe:2.3:a:librenms:librenms:1.62.2
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cpe:2.3:a:librenms:librenms:1.63
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cpe:2.3:a:librenms:librenms:1.64
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cpe:2.3:a:librenms:librenms:1.64.1
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cpe:2.3:a:librenms:librenms:1.65
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cpe:2.3:a:librenms:librenms:1.65.1
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cpe:2.3:a:librenms:librenms:1.66
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cpe:2.3:a:librenms:librenms:1.67
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cpe:2.3:a:librenms:librenms:1.68
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cpe:2.3:a:librenms:librenms:1.69
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cpe:2.3:a:librenms:librenms:1.70.0
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cpe:2.3:a:librenms:librenms:1.70.1
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cpe:2.3:a:librenms:librenms:21.1.0
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cpe:2.3:a:librenms:librenms:21.10.0
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cpe:2.3:a:librenms:librenms:21.10.1
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cpe:2.3:a:librenms:librenms:21.10.2
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cpe:2.3:a:librenms:librenms:21.11.0
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cpe:2.3:a:librenms:librenms:21.12.0
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cpe:2.3:a:librenms:librenms:21.12.1
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cpe:2.3:a:librenms:librenms:21.2.0
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cpe:2.3:a:librenms:librenms:21.3.0
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cpe:2.3:a:librenms:librenms:21.4.0
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cpe:2.3:a:librenms:librenms:21.5.0
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cpe:2.3:a:librenms:librenms:21.5.1
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cpe:2.3:a:librenms:librenms:21.6.0
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cpe:2.3:a:librenms:librenms:21.7.0
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cpe:2.3:a:librenms:librenms:21.8.0
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cpe:2.3:a:librenms:librenms:21.9.0
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cpe:2.3:a:librenms:librenms:21.9.1
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cpe:2.3:a:librenms:librenms:22.1.0
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cpe:2.3:a:librenms:librenms:22.10.0
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cpe:2.3:a:librenms:librenms:22.11.0
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cpe:2.3:a:librenms:librenms:22.2.0
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cpe:2.3:a:librenms:librenms:22.2.1
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cpe:2.3:a:librenms:librenms:22.2.2
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cpe:2.3:a:librenms:librenms:22.3.0
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cpe:2.3:a:librenms:librenms:22.4.0
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cpe:2.3:a:librenms:librenms:22.4.1
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cpe:2.3:a:librenms:librenms:22.5.0
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cpe:2.3:a:librenms:librenms:22.6.0
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cpe:2.3:a:librenms:librenms:22.7.0
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cpe:2.3:a:librenms:librenms:22.8.0
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cpe:2.3:a:librenms:librenms:22.9.0
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cpe:2.3:a:librenms:librenms:23.1.0
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cpe:2.3:a:librenms:librenms:23.1.1
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cpe:2.3:a:librenms:librenms:23.10.0
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cpe:2.3:a:librenms:librenms:23.11.0
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cpe:2.3:a:librenms:librenms:23.2.0
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cpe:2.3:a:librenms:librenms:23.4.0
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cpe:2.3:a:librenms:librenms:23.4.1
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cpe:2.3:a:librenms:librenms:23.5.0
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cpe:2.3:a:librenms:librenms:23.6.0
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cpe:2.3:a:librenms:librenms:23.7.0
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cpe:2.3:a:librenms:librenms:23.8.0
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cpe:2.3:a:librenms:librenms:23.8.1
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cpe:2.3:a:librenms:librenms:23.8.2
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cpe:2.3:a:librenms:librenms:23.9.0
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cpe:2.3:a:librenms:librenms:23.9.1
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cpe:2.3:a:librenms:librenms:24.1.0
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cpe:2.3:a:librenms:librenms:24.10.0
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cpe:2.3:a:librenms:librenms:24.11.0
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cpe:2.3:a:librenms:librenms:24.12.0
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cpe:2.3:a:librenms:librenms:24.2.0
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cpe:2.3:a:librenms:librenms:24.3.0
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cpe:2.3:a:librenms:librenms:24.4.0
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cpe:2.3:a:librenms:librenms:24.4.1
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cpe:2.3:a:librenms:librenms:24.5.0
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cpe:2.3:a:librenms:librenms:24.6.0
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cpe:2.3:a:librenms:librenms:24.7.0
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cpe:2.3:a:librenms:librenms:24.8.0
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cpe:2.3:a:librenms:librenms:24.8.1
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cpe:2.3:a:librenms:librenms:24.9.0
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cpe:2.3:a:librenms:librenms:24.9.1
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cpe:2.3:a:librenms:librenms:25.1.0
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cpe:2.3:a:librenms:librenms:25.10.0
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cpe:2.3:a:librenms:librenms:25.2.0
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cpe:2.3:a:librenms:librenms:25.3.0
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cpe:2.3:a:librenms:librenms:25.4.0
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cpe:2.3:a:librenms:librenms:25.5.0
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cpe:2.3:a:librenms:librenms:25.6.0
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cpe:2.3:a:librenms:librenms:25.7.0
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cpe:2.3:a:librenms:librenms:25.8.0
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cpe:2.3:a:librenms:librenms:25.9.0
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cpe:2.3:a:librenms:librenms:25.9.1