What is CVE-2017-18089?

CVE-2017-18089 is a medium-severity vulnerability in Atlassian Crucible, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-02-16.

How severe is CVE-2017-18089?

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

XSS in Atlassian Crucible

CVE-2017-18089

The view review history resource in Atlassian Crucible before version 4.4.3 (the fixed version for 4.4.x) and 4.5.0 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability through the invited reviewers for a review.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-02-16 · 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: 0.006 (48.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Atlassian Crucible — versions prior to 4.5.0, prior to 4.4.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/103075 (VDB Entry, Third Party Advisory, vdb-entry)
jira.atlassian.com/browse/CRUC-8169 (Vendor Advisory)

Frequently asked questions

What is CVE-2017-18089?: CVE-2017-18089 is a medium-severity vulnerability in Atlassian Crucible, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-02-16.
How severe is CVE-2017-18089?: Medium severity. CVSS v3 base score is 5.4 out of 10.