CVE-2021-44277: Librenms

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Librenms 21.11.0 is affected by a Cross Site Scripting (XSS) vulnerability in includes/html/common/alert-log.inc.php.

Affected products

• Librenms Librenms: version 21.11.0 only

Published 2021-12-01. Last modified 2026-06-17.