GHSA-frc6-pwgr-c28w

Suggest an improvement
Source
https://github.com/advisories/GHSA-frc6-pwgr-c28w
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-frc6-pwgr-c28w/GHSA-frc6-pwgr-c28w.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-frc6-pwgr-c28w
Aliases
Published
2025-10-16T16:52:13Z
Modified
2025-10-16T19:53:53Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
Summary
LibreNMS has a Stored XSS vulnerability in its Alert Transport name field
Details

Summary

LibreNMS <= 25.8.0 contains a Stored Cross-Site Scripting (XSS) vulnerability in the Alert Transports management functionality. When an administrator creates a new Alert Transport, the value of the Transport name field is stored and later rendered in the Transports column of the Alert Rules page without proper input validation or output encoding. This leads to arbitrary JavaScript execution in the admin’s browser.

Details

  • Injection point: Transport name field in /alert-transports.
  • Execution point: Transports column in /alert-rules.
  • Scope: Only administrators can create Alert Transports, and only administrators can view the affected Alert Rules page. Therefore, both exploitation and impact are limited to admin users.

Steps to reproduce

  1. Log in with an administrator account.

  2. Navigate to:

    http://localhost:8000/alert-transports

  3. Click Create alert transport and provide the following values:

    • Transport name:

      'onfocus='alert(1)' autofocus=

    • Default Alert: ON

    • Email: test@gmail.com (or any valid email)

    Save the transport.

  4. Navigate to http://localhost:8000/alert-rules. A popup alert(1) is triggered, confirming that the payload executes. image

Impact

Only accounts with the admin role who access the Alert Rules page (http://localhost:8000/alert-rules) are affected.

Database specific 
{
    "cwe_ids":  [
        "CWE-79"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2025-10-16T16:52:13Z",
    "nvd_published_at":  "2025-10-16T18:15:39Z",
    "severity":  "MODERATE"
}
References

Affected packages

Packagist / librenms/librenms

Package

Name
librenms/librenms
Purl
pkg:composer/librenms/librenms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
25.10.0

Affected versions

1.*
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.*
21.1.0
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
21.10.0
21.10.1
21.10.2
21.11.0
21.12.0
21.12.1
22.*
22.1.0
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
22.10.0
22.11.0
22.12.0
23.*
23.1.0
23.1.1
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
23.10.0
23.11.0
24.*
24.1.0
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
24.10.0
24.10.1
24.11.0
24.12.0
25.*
25.1.0
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

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-frc6-pwgr-c28w/GHSA-frc6-pwgr-c28w.json"