CVE-2021-39225 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Reference

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2x96-38qg-3m72 https://github.com/nextcloud/deck/pull/3316 https://hackerone.com/reports/1331728

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

8.1