LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Prior to version 25.11.0, a reflected cross-site scripting (XSS) vulnerability was identified in the LibreNMS application at the /maps/nodeimage endpoint. The Image Name parameter is reflected in the HTTP response without proper output encoding or sanitization, allowing an attacker to craft a URL that, when visited by a victim, causes arbitrary JavaScript execution in the victim’s browser. This issue has been patched in version 25.11.0.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/librenms/librenms/security/advisories/GHSA-j8cq-7f6p-256x Vendor Advisory
- https://github.com/librenms/librenms/security/advisories/GHSA-j8cq-7f6p-256x Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.1 · librenmsNVD modified 2026-10-19 13:10
Affected (CPE criteria) 1
cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*