What is the severity of CVE-2018-3762?

CVE-2018-3762 is classified as a medium severity vulnerability due to the potential exposure of unauthorized file previews.

How do I fix CVE-2018-3762?

To mitigate CVE-2018-3762, upgrade your Nextcloud Server to version 12.0.8 or 13.0.3 or later.

What does CVE-2018-3762 affect?

CVE-2018-3762 affects Nextcloud Server versions prior to 12.0.8 and 13.0.3.

What type of vulnerability is CVE-2018-3762?

CVE-2018-3762 is an access control vulnerability related to improper permission checks on shared files.

Can CVE-2018-3762 allow unauthorized access?

Yes, CVE-2018-3762 can allow users to request previews of files they should not have access to.

Vulnerability/
CVE-2018-3762

medium

4.3

CWE

281 284

5/7/2018

5/8/2024

CVE-2018-3762

First published: Thu Jul 05 2018(Updated: )

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.

Credit: support@hackerone.com

Affected Software	Affected Version	How to fix
Nextcloud Nextcloud Server	<12.0.8
Nextcloud Nextcloud Server	>=13.0.0<13.0.3

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2018-3762?
CVE-2018-3762 is classified as a medium severity vulnerability due to the potential exposure of unauthorized file previews.
How do I fix CVE-2018-3762?
To mitigate CVE-2018-3762, upgrade your Nextcloud Server to version 12.0.8 or 13.0.3 or later.
What does CVE-2018-3762 affect?
CVE-2018-3762 affects Nextcloud Server versions prior to 12.0.8 and 13.0.3.
What type of vulnerability is CVE-2018-3762?
CVE-2018-3762 is an access control vulnerability related to improper permission checks on shared files.
Can CVE-2018-3762 allow unauthorized access?
Yes, CVE-2018-3762 can allow users to request previews of files they should not have access to.

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agent/weakness
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agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/severity
agent/last-modified-date
agent/first-publish-date
agent/tags
agent/description
agent/event
agent/author
agent/source
vendor/nextcloud
canonical/nextcloud nextcloud server
version/nextcloud nextcloud server/13.0.0

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Frequently Asked Questions

What is the severity of CVE-2018-3762?
CVE-2018-3762 is classified as a medium severity vulnerability due to the potential exposure of unauthorized file previews.
How do I fix CVE-2018-3762?
To mitigate CVE-2018-3762, upgrade your Nextcloud Server to version 12.0.8 or 13.0.3 or later.
What does CVE-2018-3762 affect?
CVE-2018-3762 affects Nextcloud Server versions prior to 12.0.8 and 13.0.3.
What type of vulnerability is CVE-2018-3762?
CVE-2018-3762 is an access control vulnerability related to improper permission checks on shared files.
Can CVE-2018-3762 allow unauthorized access?
Yes, CVE-2018-3762 can allow users to request previews of files they should not have access to.