LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are vulnerable to Reflected XSS attacks via email field. This issue has been fixed in version 26.2.0.
https://github.com/librenms/librenms/security/advisories/GHSA-gqx7-99jw-6fpr
https://github.com/librenms/librenms/releases/tag/26.2.0
https://github.com/librenms/librenms/pull/19038
https://github.com/librenms/librenms/commit/8e626b38ef92e240532cdac2ac7e38706a71208b
Published: 2026-02-20
Updated: 2026-02-20
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Severity: Medium
EPSS: 0.00003