XSS in Librenms
CVE-2025-47931
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.119 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.119 · newest: 0.119 · change: 0.000
Affected products
- Librenms — versions < 25.5.0
Weakness classification (CWE)
References
- github.com/librenms/librenms/security/advisories/GHSA-hxw5-9cc5-cmw5 (Exploit, Vendor Advisory)
- github.com/librenms/librenms/pull/17603 (Patch, Issue Tracking)
- github.com/librenms/librenms/commit/88fe1a7abdb500d9a2d4c45f9872df54c9ff8062 (Patch)
- github.com/librenms/librenms/blob/25.4.0/includes/html/pages/addhost.inc.php (Product)
Frequently asked questions
- What is CVE-2025-47931?
- CVE-2025-47931 is a medium-severity vulnerability in Librenms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-05-17.
- How severe is CVE-2025-47931?
- Medium severity. CVSS v3 base score is 6.1 out of 10.