What is the severity of CVE-2020-8139?

CVE-2020-8139 is classified as a medium severity vulnerability.

How do I fix CVE-2020-8139?

To fix CVE-2020-8139, upgrade Nextcloud Server to version 16.0.9, 17.0.4, or 18.0.1 or higher.

What exploit does CVE-2020-8139 allow?

CVE-2020-8139 allows unauthorized access to hide-download shares by appending /download to the URL.

Which versions of Nextcloud Server are affected by CVE-2020-8139?

CVE-2020-8139 affects Nextcloud Server versions earlier than 16.0.9, 17.0.4, and 18.0.1.

What is the impact of CVE-2020-8139?

The impact of CVE-2020-8139 is that sensitive files can be downloaded by unauthorized users.

Vulnerability/
CVE-2020-8139

medium

6.5

CWE

862 284

20/3/2020

4/8/2024

CVE-2020-8139

First published: Fri Mar 20 2020(Updated: )

A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.

Credit: support@hackerone.com

Affected Software	Affected Version	How to fix
Nextcloud Nextcloud Server	>=16.0.0<16.0.9
Nextcloud Nextcloud Server	>=17.0.0<17.0.4
Nextcloud Nextcloud Server	>=18.0.0<18.0.1
Fedoraproject Fedora	=32

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2020-8139?
CVE-2020-8139 is classified as a medium severity vulnerability.
How do I fix CVE-2020-8139?
To fix CVE-2020-8139, upgrade Nextcloud Server to version 16.0.9, 17.0.4, or 18.0.1 or higher.
What exploit does CVE-2020-8139 allow?
CVE-2020-8139 allows unauthorized access to hide-download shares by appending /download to the URL.
Which versions of Nextcloud Server are affected by CVE-2020-8139?
CVE-2020-8139 affects Nextcloud Server versions earlier than 16.0.9, 17.0.4, and 18.0.1.
What is the impact of CVE-2020-8139?
The impact of CVE-2020-8139 is that sensitive files can be downloaded by unauthorized users.

agent/weakness
agent/type
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/references
agent/severity
agent/author
agent/softwarecombine
agent/description
agent/event
agent/first-publish-date
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/nextcloud
canonical/nextcloud nextcloud server
version/nextcloud nextcloud server/16.0.0
version/nextcloud nextcloud server/17.0.0
version/nextcloud nextcloud server/18.0.0
vendor/fedoraproject
canonical/fedoraproject fedora
version/fedoraproject fedora/32

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Frequently Asked Questions

What is the severity of CVE-2020-8139?
CVE-2020-8139 is classified as a medium severity vulnerability.
How do I fix CVE-2020-8139?
To fix CVE-2020-8139, upgrade Nextcloud Server to version 16.0.9, 17.0.4, or 18.0.1 or higher.
What exploit does CVE-2020-8139 allow?
CVE-2020-8139 allows unauthorized access to hide-download shares by appending /download to the URL.
Which versions of Nextcloud Server are affected by CVE-2020-8139?
CVE-2020-8139 affects Nextcloud Server versions earlier than 16.0.9, 17.0.4, and 18.0.1.
What is the impact of CVE-2020-8139?
The impact of CVE-2020-8139 is that sensitive files can be downloaded by unauthorized users.