CVE-2020-4020

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CVSS 3.1

7.2 high

EPSS

2%p75

Published

Jun 1, 2020 (Jun 1, 2020)

Modified

Jun 17, 2026

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.

Vendors: atlassian
Products: companion
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.7%)

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