Published: 12/07/2021 Updated: 25/10/2022

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Nextcloud Server is a Nextcloud package that handles data storage. In versions before 19.0.13, 20.011, and 21.0.3, webauthn tokens were not deleted after a user has been deleted. If a victim reused an earlier used username, the previous user could gain access to their account. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.

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In Nextcloud Server versions prior to 2103, webauthn tokens were not deleted after a user has been deleted If a victim reused an earlier used username, the previous user could gain access to their account ...

CWE-708 https://hackerone.com/reports/1202590 https://github.com/nextcloud/server/pull/27532 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6qr9-c846-j8mg https://security.gentoo.org/glsa/202208-17 https://nvd.nist.gov https://security.archlinux.org/CVE-2021-32726

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CVE-2021-32726

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