Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1wbThqLTN2NjQtOTJjcc4ABDb4

LibreNMS Display Name Stored Cross-site Scripting vulnerability

Description:

XSS on the parameters (Replace $DEVICE_ID with your specific $DEVICE_ID value):/device/$DEVICE_ID/edit -> param: display

of Librenms versions 24.9.0, 24.10.0, and 24.10.1 (https://github.com/librenms/librenms) allows remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure.

Proof of Concept:

1. Add a new device through the LibreNMS interface.

2. Edit the newly created device by going to the "Device Settings" section.

3. In the "Display Name" field, enter the following payload: "><script>alert(1)</script>.
   

4. Save the changes.

5. The XSS payload triggers when accessing the "/apps" path (if an application was previously added).
   

Additional PoC:

1. In the "Display Name" field, enter the following payload: "><img src onerror="alert(1)">.
   

2. The XSS vulnerability is triggered when accessing the "/ports" path, and the payload executes when hovering over the modified value in the "Port" field.
   

• on /device/$DEVICE_ID/ports/arp path:
  

• on /device/$DEVICE_ID/logs path:
  

• on /search/search=arp/ path:
  

Impact:

Execution of Malicious Code

Permalink: https://github.com/advisories/GHSA-pm8j-3v64-92cq
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1wbThqLTN2NjQtOTJjcc4ABDb4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 1 day ago
Updated: about 1 hour ago

CVSS Score: 4.6
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

EPSS Percentage: 0.00043
EPSS Percentile: 0.1136

Identifiers: GHSA-pm8j-3v64-92cq, CVE-2025-23198
References:

• https://github.com/librenms/librenms/security/advisories/GHSA-pm8j-3v64-92cq
• https://github.com/librenms/librenms/commit/afe92dbf4321f107012690d476685603d1ccb013
• https://nvd.nist.gov/vuln/detail/CVE-2025-23198
• https://github.com/advisories/GHSA-pm8j-3v64-92cq

Repository: https://github.com/librenms/librenms
Blast Radius: 1.4

Affected Packages