CVE-2020-4020

High

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.

SeverityHigh
CVSS7.2
Exploit probability—
ProductAtlassian Companion
PublishedJun 1, 2020
First seenJun 1, 2020

How to fix

Update
  • atlassian companion1.0.0 or later

Affected products

ProductAffected versionsFixed in
atlassian companionv < 1.0.01.0.0

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