CVE-2020-36858

Medium · 5.4

CVSS

5.4

EPSS

0.5%

Published

Oct 30, 2025

CISA due date

—

The record

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting (XSS) vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

Affected packages

Ecosystem	Package	Introduced	Fixed