Cross-site Scripting (XSS) Affecting nagios4 package, versions <4.3.4-3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.54% (85th percentile)

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  • Snyk IDSNYK-ECHOLATEST-NAGIOS4-18860503
  • published16 Aug 2026
  • disclosed17 Dec 2018

Introduced: 17 Dec 2018

CVE-2018-18245  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Echo:latest nagios4 to version 4.3.4-3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nagios4 package and not the nagios4 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Nagios Core 4.4.2 has XSS via the alert summary reports of plugin results, as demonstrated by a SCRIPT element delivered by a modified check_load plugin to NRPE.