CVE-2020-4020

HIGH

Atlassian Companion App <1.0.0 - RCE

Title source: llm
STIX 2.1

Description

The file downloading functionality in the Atlassian Companion App before version 1.0.0 allows remote attackers, who control a Confluence Server instance that the Companion App is connected to, execute arbitrary .exe files via a Protection Mechanism Failure.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://jira.atlassian.com/browse/CONFSERVER-59733

Scores

CVSS v3 7.2
EPSS 0.0067
EPSS Percentile 71.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (1)
atlassian/companion < 1.0.0
Published Jun 01, 2020
Tracked Since Feb 18, 2026