CVE-2021-39225

Missing permission check on Deck API

Description

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.

Categories

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory hackerone.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2x96-38qg-3m72 third party advisory
https://github.com/nextcloud/deck/pull/3316 third party advisory patch
https://hackerone.com/reports/1331728 third party advisory permissions required

Frequently Asked Questions

What is the severity of CVE-2021-39225?
CVE-2021-39225 has been scored as a high severity vulnerability.
How to fix CVE-2021-39225?
To fix CVE-2021-39225, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39225 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-39225 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39225?
CVE-2021-39225 affects nextcloud security-advisories.
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