CVE-2018-20240

Severity: medium (CVSS 4.8 v3.0)
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: 2019-02-20 · updated 2026-06-17
Weakness: CWE-79

Description

The administrative linker functionality in Atlassian Fisheye and Crucible before version 4.7.0 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the href parameter.

Affected products

Atlassian Crucible: before 4.7.0 — fixed in 4.7.0
Atlassian Fisheye: before 4.7.0 — fixed in 4.7.0

How to fix

Upgrade to a fixed version: Atlassian Crucible 4.7.0; Atlassian Fisheye 4.7.0. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/107128
https://jira.atlassian.com/browse/CRUC-8381
https://jira.atlassian.com/browse/FE-7163
http://www.securityfocus.com/bid/107128
https://jira.atlassian.com/browse/CRUC-8381
https://jira.atlassian.com/browse/FE-7163

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