What is CVE-2017-18102?

CVE-2017-18102 is a medium-severity vulnerability in Atlassian Atlassian-Renderer, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-04-17.

How severe is CVE-2017-18102?

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

XSS in Atlassian Atlassian-Renderer

CVE-2017-18102

The wiki markup component of atlassian-renderer from version 8.0.0 before version 8.0.22 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in nested wiki markup.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-04-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% 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 Atlassian-Renderer — versions unspecified, 8.0.0
Atlassian Jira Server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jira.atlassian.com/browse/JRASERVER-67108 (Issue Tracking, Vendor Advisory)
jira.atlassian.com/browse/RNDR-153 (Permissions Required)

Frequently asked questions

What is CVE-2017-18102?: CVE-2017-18102 is a medium-severity vulnerability in Atlassian Atlassian-Renderer, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-04-17.
How severe is CVE-2017-18102?: Medium severity. CVSS v3 base score is 5.4 out of 10.