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VULNERABILITIES

CVE-2023-35927 Details

Description

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, when two server are registered as trusted servers for each other and successfully exchanged the share secrets, the malicious server could modify or delete VCards in the system addressbook on the origin server. This would impact the available and shown information in certain places, such as the user search and avatar menu. If a manipulated user modifies their own data in the personal settings the entry is fixed again. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. A workaround is available. Remove all trusted servers in the "Administration" > "Sharing" settings `…/index.php/settings/admin/sharing`. Afterwards, trigger a recreation of the local system addressbook with the following `occ dav:sync-system-addressbook`.

Metrics

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87 CVEVendor Advisory
https://github.com/nextcloud/server/pull/38247 CVEIssue Tracking
https://hackerone.com/reports/1976754 CVEPermissions Required
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87 [email protected]Vendor Advisory
https://github.com/nextcloud/server/pull/38247 [email protected]Issue Tracking

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]
CWE-284Improper Access Control[email protected]

Affected Products

ProductVersions
nextcloud nextcloud server
>= 16.0.0, < 19.0.13.9
>= 20.0.0, < 20.0.14.14
>= 21.0.0, < 21.0.9.12
>= 22.0.0, < 22.2.10.12
>= 23.0.0, < 23.0.12.7

CPE

  • cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-35927
NVD Published Date:
Jun 23, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-35927 Details - Not Deferred