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CVE PROGRAM SOURCE RECORD3.3 Low

CVE-2025-66546

Nextcloud Calendar app allowed booking appointments without the generated token

Description

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nextcloud security-advisories

  • >= 6.0.0-rc.1, < 6.0.1affected
  • >= 5.0.0-rc.1, < 5.5.6affected
  • >= 3.0.0-beta1, < 4.7.19affected

References