What is CVE-2018-13399?

CVE-2018-13399 is a high-severity vulnerability in Atlassian Crucible, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2018-10-16.

How severe is CVE-2018-13399?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Atlassian Crucible

CVE-2018-13399

The Microsoft Windows Installer for Atlassian Fisheye and Crucible before version 4.6.1 allows local attackers to escalate privileges because of weak permissions on the installation directory.

Published 2018-10-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (16.1th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Atlassian Crucible
Atlassian Fisheye
Atlassian Fisheye And Crucible — versions unspecified

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

jira.atlassian.com/browse/FE-7105 (Issue Tracking, Vendor Advisory)
jira.atlassian.com/browse/CRUC-8314 (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-13399?: CVE-2018-13399 is a high-severity vulnerability in Atlassian Crucible, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2018-10-16.
How severe is CVE-2018-13399?: High severity. CVSS v3 base score is 7.8 out of 10.