CVE-2025-23199 – librenms/librenms

Package

Manager: composer
Name: librenms/librenms
Vulnerable Version: >=0 <24.11.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00013 pctl0.01386

Details

LibreNMS Ports Stored Cross-site Scripting vulnerability # StoredXSS-LibreNMS-Ports **Description:** Stored XSS on the parameter: `/ajax_form.php` -> param: descr Request: ```http POST /ajax_form.php HTTP/1.1 Host: <your_host> X-Requested-With: XMLHttpRequest X-CSRF-TOKEN: <your_XSRF_token> Content-Type: application/x-www-form-urlencoded; charset=UTF-8 Cookie: <your_cookie> type=update-ifalias&descr=%22%3E%3Cimg+src+onerror%3D%22alert(1)%22%3E&ifName=lo&port_id=1&device_id=1 ``` of Librenms version 24.10.1 ([https://github.com/librenms/librenms](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 and select the "ports" section. 3. In the "Description" field, enter the following payload: `"><img src onerror="alert(1)">`. 4. Save the changes. 5. The XSS vulnerability is triggered when accessing the "ports" tab, and the payload is executed again when hovering over the modified value in the "Port" field. Payload: ![payload](https://github.com/user-attachments/assets/2f38b985-6684-403f-9d1f-e405f09a75bb) Executes: ![image](https://github.com/user-attachments/assets/b70a6e34-d52c-4113-b769-4e271e33de88) The script execution vulnerability in the description field, as shown in the image, occurs at [Line 63 of functions.inc.php](https://github.com/librenms/librenms/blob/master/includes/html/functions.inc.php#L63) ```php $overlib_content = '<div class=overlib><span class=overlib-text>' . $text . '</span><br />'; ``` ![image](https://github.com/user-attachments/assets/97b85403-5b7e-4f43-932c-d33bd3c0f73f) **Impact:** Execution of Malicious Code

Metadata

Created: 2025-01-16T17:32:30Z
Modified: 2025-03-25T15:47:35Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/01/GHSA-27vf-3g4f-6jp7/GHSA-27vf-3g4f-6jp7.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-27vf-3g4f-6jp7
Finding: F425
Auto approve: 1