CVE-2025-66546 in Calendar

Riassunto

di MITRE • 05/12/2025

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.

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• Responsabile: GitHub M
• Prenotare: 04/12/2025
• Divulgazione: 05/12/2025
• Moderazione: accettato
• Voce: VDB-334518
• CPE: pronto
• CWE: CWE-639 (confermato)
• CVSS: 3.3 (CNA)
• EPSS: 0.00123
• KEV: no
• Attività: molto basso
• Settore: Education, Homeoffice, ...

Fonti

• MITRE: https://www.cve.org/CVERecord?id=CVE-2025-66546
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-66546
• CVE Details: https://www.cvedetails.com/cve/CVE-2025-66546/