CVE-2025-47931 LibreNMS stored Cross-site Scripting vulnerability in poller group name
Attackers can inject malicious scripts via poller group names, potentially compromising other users' sessions in LibreNMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-47931?
CVE-2025-47931 is a low-severity cross-site scripting vulnerability in Librenms Librenms, published on 17 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
LibreNMS is PHP/MySQL/SNMP based network monitoring software. LibreNMS v25.4.0 and prior suffers from a Stored Cross-Site Scripting (XSS) Vulnerability in the `group name` parameter of the `http://localhost/poller/groups` form. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. LibreNMS v25.5.0 contains a patch for the issue.
Weakness: CWE-79
Which versions are affected by CVE-2025-47931?
2 open source packages ship an affected version, including librenms/librenms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
librenms/librenms Packagist | All versions | 25.5.0 |
librenms/librenms Packagist | All versions | 25.5.0 |
Products include Librenms Librenms.
How do I fix CVE-2025-47931?
Upgrade librenms/librenms to 25.5.0 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-2025-47931 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-47931 exists.
Other vulnerabilities in Librenms Librenms
Sources
Also known as GHSA-hxw5-9cc5-cmw5.