What is CVE-2021-39225?

CVE-2021-39225 is a vulnerability in Nextcloud Deck that allows authenticated users to access another user's Deck cards.

How does CVE-2021-39225 impact Nextcloud Deck?

CVE-2021-39225 allows authenticated users to access Deck cards of another user.

What is the severity of CVE-2021-39225?

CVE-2021-39225 has a severity rating of 8.1 (high).

How can I fix CVE-2021-39225 in Nextcloud Deck?

To fix CVE-2021-39225, it is recommended to upgrade Nextcloud Deck App to version 1.2.9, 1.4.5, or 1.5.3.

Where can I find more information about CVE-2021-39225?

You can find more information about CVE-2021-39225 in the following references: [Link 1](https://github.com/nextcloud/deck/pull/3316), [Link 2](https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2x96-38qg-3m72), [Link 3](https://hackerone.com/reports/1331728).

Vulnerability/
CVE-2021-39225

high

8.1

CWE

862 639

25/10/2021

4/8/2024

CVE-2021-39225: Missing permission check on Deck API

First published: Mon Oct 25 2021(Updated: )

Nextcloud is an open-source, self-hosted productivity platform. A missing permission check in Nextcloud Deck before 1.2.9, 1.4.5 and 1.5.3 allows another authenticated users to access Deck cards of another user. It is recommended that the Nextcloud Deck App is upgraded to 1.2.9, 1.4.5 or 1.5.3. There are no known workarounds aside from upgrading.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Nextcloud Deck	<1.2.9
Nextcloud Deck	>=1.3.0<1.4.5
Nextcloud Deck	>=1.5.0<1.5.3

Remedy

https://github.com/nextcloud/deck/pull/3316

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Reference Links

Frequently Asked Questions

What is CVE-2021-39225?
CVE-2021-39225 is a vulnerability in Nextcloud Deck that allows authenticated users to access another user's Deck cards.
How does CVE-2021-39225 impact Nextcloud Deck?
CVE-2021-39225 allows authenticated users to access Deck cards of another user.
What is the severity of CVE-2021-39225?
CVE-2021-39225 has a severity rating of 8.1 (high).
How can I fix CVE-2021-39225 in Nextcloud Deck?
To fix CVE-2021-39225, it is recommended to upgrade Nextcloud Deck App to version 1.2.9, 1.4.5, or 1.5.3.
Where can I find more information about CVE-2021-39225?
You can find more information about CVE-2021-39225 in the following references: [Link 1](https://github.com/nextcloud/deck/pull/3316), [Link 2](https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2x96-38qg-3m72), [Link 3](https://hackerone.com/reports/1331728).

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vendor/nextcloud
canonical/nextcloud deck
version/nextcloud deck/1.3.0
version/nextcloud deck/1.5.0

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