What is CVE-2018-16165?

CVE-2018-16165 is a medium-severity vulnerability in Jpcert Logontracer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-01-09.

How severe is CVE-2018-16165?

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

XSS in Jpcert Logontracer

CVE-2018-16165

Cross-site scripting vulnerability in LogonTracer 1.2.0 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-01-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Jpcert Logontracer
Jpcert Coordination Center Logontracer — versions 1.2.0 and earlier

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/JPCERTCC/LogonTracer/releases/tag/v1.2.1 (Third Party Advisory, Release Notes)
jvn.jp/en/vu/JVNVU98026636/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2018-16165?: CVE-2018-16165 is a medium-severity vulnerability in Jpcert Logontracer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-01-09.
How severe is CVE-2018-16165?: Medium severity. CVSS v3 base score is 6.1 out of 10.