cvedb.io
CVE-2025-66546
LOW · CVSS 3.3
EPSS exploitation probability: 0%
Published 2025-12-05T17:16:05.163 · Last modified 2026-06-17T09:57:00.350

Summary

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 4.7.19, 5.5.6, and 6.0.1, the calendar app allowed blindly booking appointments with a squential ID without known the appointment token. This vulnerability is fixed in 4.7.19, 5.5.6, and 6.0.1.

Affected products

nextcloud — calendar

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.