CVE-2020-4016

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-01 · updated 2026-06-17

Description

The /plugins/servlet/jira-blockers/ resource in the crucible-jira-ril plugin in Atlassian Fisheye and Crucible before version 4.8.1 allows remote attackers to get the ID of configured Jira application links via an information disclosure 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-8469
https://jira.atlassian.com/browse/FE-7285
https://jira.atlassian.com/browse/CRUC-8469
https://jira.atlassian.com/browse/FE-7285

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