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Status published
Medium
CVE-2021-22877
A missing user check in Nextcloud prior to 20.0.6 inadvertently...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://hackerone.com/reports/1061591
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-004
- https://github.com/nextcloud/server/issues/24600
- https://github.com/nextcloud/server/pull/25224
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/
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Affected Vendor
Affected Software
Nextcloud Server
Vulnerable Versions:
Fixed in 20.0.6
Timeline
Official Publish:
March 3rd, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N