Vulnerability Details : CVE-2021-39225
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.
Products affected by CVE-2021-39225
- cpe:2.3:a:nextcloud:deck:*:*:*:*:*:*:*:*
- cpe:2.3:a:nextcloud:deck:*:*:*:*:*:*:*:*
- cpe:2.3:a:nextcloud:deck:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-39225
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39225
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:N |
8.0
|
4.9
|
NIST | |
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
2.8
|
5.2
|
NIST | |
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
2.8
|
5.2
|
GitHub, Inc. |
CWE ids for CVE-2021-39225
-
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.Assigned by: security-advisories@github.com (Secondary)
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39225
-
https://github.com/nextcloud/deck/pull/3316
Additional check for stacks by juliushaertl · Pull Request #3316 · nextcloud/deck · GitHubPatch;Third Party Advisory
-
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2x96-38qg-3m72
Missing permission check on Deck API · Advisory · nextcloud/security-advisories · GitHubThird Party Advisory
-
https://hackerone.com/reports/1331728
Sign inPermissions Required;Third Party Advisory
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