What is CVE-2017-9509?

CVE-2017-9509 is a medium-severity vulnerability in Atlassian Crucible, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-08-24.

How severe is CVE-2017-9509?

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

XSS in Atlassian Crucible

CVE-2017-9509

The review file upload resource in Atlassian Crucible before version 4.4.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability through the charset of a previously uploaded file.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-08-24 · 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: 0.008 (55.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Atlassian Crucible — versions All versions prior to version 4.4.1
Atlassian Crucible
Atlassian Fisheye

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jira.atlassian.com/browse/CRUC-8046 (Vendor Advisory)

Frequently asked questions

What is CVE-2017-9509?: CVE-2017-9509 is a medium-severity vulnerability in Atlassian Crucible, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-08-24.
How severe is CVE-2017-9509?: Medium severity. CVSS v3 base score is 5.4 out of 10.