CVE-2023-35927
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Nextcloud system addressbooks can be modified by malicious trusted server
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`.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
security-advisories
- Vendor
- nextcloud
- Product
- security-advisories
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| Nextcloud Server >= 25.0.0, < 25.0.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Server >= 26.0.0, < 26.0.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Enterprise Server >= 25.0.0, < 25.0.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Enterprise Server >= 26.0.0, < 26.0.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Enterprise Server >= 21.0.0, < 21.0.9.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Enterprise Server >= 22.0.0, < 22.2.10.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Enterprise Server >= 23.0.0, < 23.0.12.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Nextcloud Enterprise Server >= 24.0.0, < 24.0.12.2 | affected | Unavailable | Unavailable | Unavailable | None listed |