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LibreNMS Display Name 2 Stored Cross-site Scripting vulnerability

Moderate severity GitHub Reviewed Published Jan 16, 2025 in librenms/librenms • Updated Apr 28, 2025

Package

composer librenms/librenms (Composer)

Affected versions

= 24.11.10

Patched versions

24.12.0

Description

StoredXSS-LibreNMS-Display Name 2

Description:

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

of Librenms versions 24.11.0 (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: "><img src onerror="alert(document.cookie)">.
    image
  4. Save the changes.
  5. The XSS payload is triggered when navigating to the path /device/$DEVICE_ID/logs and hovering over a type containing a tag (such as Core 1 in the image).
    image

Impact:

Execution of Malicious Code

References

@murrant murrant published to librenms/librenms Jan 16, 2025
Published to the GitHub Advisory Database Jan 16, 2025
Reviewed Jan 16, 2025
Published by the National Vulnerability Database Jan 16, 2025
Last updated Apr 28, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(5th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2024-56144

GHSA ID

GHSA-2f4w-6mc7-4w78

Source code

Credits

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