What is the severity of CVE-2021-32655?

CVE-2021-32655 has been classified as a medium severity vulnerability.

How do I fix CVE-2021-32655?

To fix CVE-2021-32655, upgrade Nextcloud Server to versions 19.0.11, 20.0.10, or 21.0.2 or later.

What are the consequences of CVE-2021-32655 if exploited?

Exploitation of CVE-2021-32655 may allow an attacker to convert a Files Drop link to a federated share, affecting user sharing experiences.

Which versions of Nextcloud Server are affected by CVE-2021-32655?

CVE-2021-32655 affects Nextcloud Server versions prior to 19.0.11, 20.0.10, and 21.0.2.

Is there a workaround for CVE-2021-32655?

There is no official workaround for CVE-2021-32655 other than applying the necessary updates.

Vulnerability/
CVE-2021-32655

low

3.5

CWE

241

1/6/2021

3/8/2024

CVE-2021-32655: Files Drop public link can be added as federated share

First published: Tue Jun 01 2021(Updated: )

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to convert a Files Drop link to a federated share. This causes an issue on the UI side of the sharing user. When the sharing user opens the sharing panel and tries to remove the "Create" privileges of this unexpected share, Nextcloud server would silently grant the share read privileges. The vulnerability is patched in versions 19.0.11, 20.0.10 and 21.0.2. No workarounds are known to exist.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Nextcloud Server	<19.0.11
Nextcloud Server	>=20.0.0<20.0.10
Nextcloud Server	>=21.0.0<21.0.2

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-32655?
CVE-2021-32655 has been classified as a medium severity vulnerability.
How do I fix CVE-2021-32655?
To fix CVE-2021-32655, upgrade Nextcloud Server to versions 19.0.11, 20.0.10, or 21.0.2 or later.
What are the consequences of CVE-2021-32655 if exploited?
Exploitation of CVE-2021-32655 may allow an attacker to convert a Files Drop link to a federated share, affecting user sharing experiences.
Which versions of Nextcloud Server are affected by CVE-2021-32655?
CVE-2021-32655 affects Nextcloud Server versions prior to 19.0.11, 20.0.10, and 21.0.2.
Is there a workaround for CVE-2021-32655?
There is no official workaround for CVE-2021-32655 other than applying the necessary updates.

agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/author
agent/severity
agent/title
agent/weakness
agent/references
agent/last-modified-date
agent/description
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/nextcloud
canonical/nextcloud server
version/nextcloud server/20.0.0
version/nextcloud server/21.0.0

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.