CVE-2024-47528 LibreNMS Contains a Stored XSS via File Upload
An admin can upload malicious SVG files to custom maps, triggering stored XSS that allows attackers to execute scripts in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-47528?
CVE-2024-47528 is a medium-severity cross-site scripting vulnerability in Librenms Librenms, published on 1 Oct 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Stored Cross-Site Scripting (XSS) can be achieved by uploading a new Background for a Custom Map. Users with "admin" role can set background for a custom map, this allow the upload of SVG file that can contain XSS payload which will trigger on load. This led to Stored Cross-Site Scripting (XSS). The vulnerability is fixed in 24.9.0.
Which versions are affected by CVE-2024-47528?
2 open source packages ship an affected version, including librenms/librenms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
librenms/librenms Packagist | All versions | 24.9.0 |
librenms/librenms Packagist | All versions | 24.9.0 |
Products include Librenms Librenms.
How do I fix CVE-2024-47528?
Upgrade librenms/librenms to 24.9.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-47528 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-47528 exists.
Other vulnerabilities in Librenms Librenms
Sources
Also known as GHSA-x8gm-j36p-fppf.