CVE-2021-39225

Summary:

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.

Reference Links(if available):

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2×96-38qg-3m72

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

https://hackerone.com/reports/1331728

CVSS Score (if available)

v2: / HIGH

v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Links to Exploits(if available)