CVEvulnerability
CVE-2021-37631
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-09-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:P/I:N/A:N
- Weaknesses
- CWE-639
Description
Deck is an open source kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. In affected versions the Deck application didn't properly check membership of users in a Circle. This allowed other users in the instance to gain access to boards that have been shared with a Circle, even if the user was not a member of the circle. It is recommended that Nextcloud Deck is upgraded to 1.5.1, 1.4.4 or 1.2.9. If you are unable to update it is advised to disable the Deck plugin.
Affected configurations
• nextcloud deck (< 1.2.9)
• nextcloud deck (>= 1.3.0 < 1.4.4)
• nextcloud deck (>= 1.5.0 < 1.5.1)
Related
Weakness · CWE (1)
- CWE-639 Authorization Bypass Through User-Controlled Key weakness
References
- https://github.com/nextcloud/deck/pull/3217 Patch, Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4mxp-j277-82hr Third Party Advisory
- https://hackerone.com/reports/1256021 Permissions Required, Third Party Advisory
- https://hackerone.com/reports/1280931 Permissions Required, Third Party Advisory
- https://github.com/nextcloud/deck/pull/3217 Patch, Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4mxp-j277-82hr Third Party Advisory
- https://hackerone.com/reports/1256021 Permissions Required, Third Party Advisory
- https://hackerone.com/reports/1280931 Permissions Required, Third Party Advisory