CVE-2020-4018

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-01 · updated 2026-06-17
Weakness: CWE-352

Description

The setup resources in Atlassian Fisheye and Crucible before version 4.8.1 allows remote attackers to complete the setup process via a cross-site request forgery (CSRF) vulnerability.

Affected products

Atlassian Crucible: before 4.8.1 — fixed in 4.8.1
Atlassian Fisheye: before 4.8.1 — fixed in 4.8.1

How to fix

Upgrade to a fixed version: Atlassian Crucible 4.8.1; Atlassian Fisheye 4.8.1. Check the vendor advisory for mitigations.

References

https://jira.atlassian.com/browse/CRUC-8471
https://jira.atlassian.com/browse/FE-7287
https://jira.atlassian.com/browse/CRUC-8471
https://jira.atlassian.com/browse/FE-7287

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