CVE-2017-18102

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-04-17 · updated 2026-06-17
Weakness: CWE-79

Description

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.

Affected products

Atlassian Jira: from 7.5.0 before 7.6.8; from 7.7.0 before 7.7.1; from 8.0.0 before 8.0.22 — fixed in 7.6.8, 7.7.1, 8.0.22

How to fix

Upgrade to a fixed version: Atlassian Jira 7.6.8, 7.7.1, 8.0.22. Check the vendor advisory for mitigations.

References

https://jira.atlassian.com/browse/JRASERVER-67108
https://jira.atlassian.com/browse/RNDR-153
https://jira.atlassian.com/browse/JRASERVER-67108
https://jira.atlassian.com/browse/RNDR-153

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