What is CVE-2018-25119?

CVE-2018-25119 is a medium-severity vulnerability in Nagios Fusion, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-10-30.

How severe is CVE-2018-25119?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Nagios Fusion

CVE-2018-25119

Nagios Fusion versions prior to 4.1.5 are vulnerable to cross-site scripting (XSS) via the "fusionwindow" parameter. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (37.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Nagios Fusion — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (release-notes, Release Notes, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-25119?: CVE-2018-25119 is a medium-severity vulnerability in Nagios Fusion, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-10-30.
How severe is CVE-2018-25119?: Medium severity. CVSS v3 base score is 6.1 out of 10.