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nvd[email protected]NVD:CVE-2023-39963
HistoryAug 10, 2023 - 6:15 p.m.

CVE-2023-39963

2023-08-1018:15:10
CWE-284
web.nvd.nist.gov
nextcloud
server
vulnerability
attacker
app passwords
victim

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.9%

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully stealing a session from a logged in user, to create app passwords for the victim. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

Affected configurations

NVD
Node
nextcloudnextcloud_serverRange20.0.020.0.14.15enterprise
OR
nextcloudnextcloud_serverRange21.0.021.0.9.13enterprise
OR
nextcloudnextcloud_serverRange22.0.022.2.10.14enterprise
OR
nextcloudnextcloud_serverRange23.0.023.0.12.9enterprise
OR
nextcloudnextcloud_serverRange24.0.024.0.12.5enterprise
OR
nextcloudnextcloud_serverRange25.0.025.0.9-
OR
nextcloudnextcloud_serverRange25.0.025.0.9enterprise
OR
nextcloudnextcloud_serverRange26.0.026.0.4-
OR
nextcloudnextcloud_serverRange26.0.026.0.4enterprise
OR
nextcloudnextcloud_serverMatch27.0.0-
OR
nextcloudnextcloud_serverMatch27.0.0enterprise

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.9%