CVEvulnerability
CVE-2021-22877
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-03-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:N
- Weaknesses
- CWE-284, CWE-862
Description
A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.
Affected configurations
• nextcloud nextcloud server (< 20.0.6)
• fedoraproject fedora 34
Related
References
- https://github.com/nextcloud/server/issues/24600 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/pull/25224 Patch, Third Party Advisory
- https://hackerone.com/reports/1061591 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ lists.fedoraproject.org
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 Broken Link, Vendor Advisory
- https://github.com/nextcloud/server/issues/24600 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/pull/25224 Patch, Third Party Advisory
- https://hackerone.com/reports/1061591 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ lists.fedoraproject.org
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 Broken Link, Vendor Advisory