CVE-2025-47931
LibreNMS stored Cross-site Scripting vulnerability in poller group name
Impact
### LibreNMS v25.4.0 suffers from 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. ## ---------------------------------POC----------------------------- Before Setting: Enable 'distributed_poller' in http://localhost/settings/poller/distributed 1. Attacker creates a new poller group and injects the payload in the 'group name' parameter ``` payload: <script>alert('XSS')</script> ``` 2. Victim navigates to the 'http://localhost/addhost' to add a new host 3. The payload is executed code sink: https://github.com/librenms/librenms/blob/25.4.0/includes/html/pages/addhost.inc.php#L284
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | librenms/librenms | < 25.5.0 | 25.5.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Librenms | Librenms | before 25.5.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/librenms/librenms/blob/25.4.0/includes/html/pages/addhost.inc.php#L284
- https://github.com/librenms/librenms/commit/88fe1a7abdb500d9a2d4c45f9872df54c9ff8062
- https://github.com/librenms/librenms/pull/17603
- https://github.com/librenms/librenms/security/advisories/GHSA-hxw5-9cc5-cmw5
- https://github.com/advisories/GHSA-hxw5-9cc5-cmw5
- https://nvd.nist.gov/vuln/detail/CVE-2025-47931