What is CVE-2018-10553?

CVE-2018-10553 is a medium-severity vulnerability in Nagios Xi, classified under Path Traversal. CVSS score: 6.5/10. Published 2018-04-30.

How severe is CVE-2018-10553?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Path Traversal in Nagios Xi

CVE-2018-10553

An issue was discovered in Nagios XI 5.4.13. A registered user is able to use directory traversal to read local files, as demonstrated by URIs beginning with index.php?xiwindow=./ and config/?xiwindow=../ substrings.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2018-04-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.390 (98.5th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.395 · newest: 0.390 · change: -0.005

Affected products

Nagios Xi — versions 5.4.13

Weakness classification (CWE)

CWE-22 — Path Traversal

References

code610.blogspot.com/2018/04/few-bugs-in-latest-nagios-xi-5413.html (Third Party Advisory)

Frequently asked questions

What is CVE-2018-10553?: CVE-2018-10553 is a medium-severity vulnerability in Nagios Xi, classified under Path Traversal. CVSS score: 6.5/10. Published 2018-04-30.
How severe is CVE-2018-10553?: Medium severity. CVSS v3 base score is 6.5 out of 10.