Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Deck | < 1.2.9 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/deck/pull/3217PatchThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4mxp-jThird Party Advisory
- https://hackerone.com/reports/1256021Permissions RequiredThird Party Advisory
- https://hackerone.com/reports/1280931Permissions RequiredThird Party Advisory
- https://github.com/nextcloud/deck/pull/3217PatchThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4mxp-jThird Party Advisory
- https://hackerone.com/reports/1256021Permissions RequiredThird Party Advisory
- https://hackerone.com/reports/1280931Permissions RequiredThird Party Advisory
FAQ
What is CVE-2021-37631?
CVE-2021-37631 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...
How severe is CVE-2021-37631?
CVE-2021-37631 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-37631?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Deck.