VULNERABILITY INTELLIGENCE
CVE-2021-22877
CVSS score6.5 MEDIUM
EPSS probability1.69%
CISA KEVNot currently listed
Published2021-03-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
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.
Weakness classification
- support@hackerone.com: CWE-284
- nvd@nist.gov: CWE-862
Primary references
- support@hackerone.com — Exploit, Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Patch, Third Party Advisory
- support@hackerone.com — Issue Tracking, Third Party Advisory
- support@hackerone.com
- support@hackerone.com — Broken Link, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Vendor Advisory