Description
Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied to other endpoints, were not effective here. This issue has been patched in versions 5.5.17 and 6.2.3.
Details
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| calendar | 6.2.0 | 6.2.3 |
| unknown | — | — |
References
Similar Threats
- Medium CVE-2025-66511
- Low CVE-2025-66546
- Medium CVE-2025-66550
- Medium CVE-2025-21035
- Medium CVE-2024-45303
Exploit Protection
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