What is CVE-2018-13388?

CVE-2018-13388 is a medium-severity vulnerability in Atlassian Crucible, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-07-10.

How severe is CVE-2018-13388?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Atlassian Crucible

CVE-2018-13388

The review attachment resource in Atlassian Fisheye and Crucible before version 4.5.3 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in attached files.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-07-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Atlassian Crucible
Atlassian Fisheye
Atlassian Fisheye And Crucible — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jira.atlassian.com/browse/CRUC-8209 (Patch, Issue Tracking, Vendor Advisory)
jira.atlassian.com/browse/FE-7059 (Patch, Issue Tracking, Vendor Advisory)
www.securityfocus.com/bid/104717 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-13388?: CVE-2018-13388 is a medium-severity vulnerability in Atlassian Crucible, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-07-10.
How severe is CVE-2018-13388?: Medium severity. CVSS v3 base score is 5.4 out of 10.