CVE-2025-66546 Nextcloud Calendar app allowed booking appointments without the generated token
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | Nextcloud Calendar Unauthorized Access | 25 Mar 202600:00 | – | bdu_fstec |
 | CVE-2025-66546 | 5 Dec 202514:50 | – | circl |
 | NextCloud Calendar security vulnerability | 5 Dec 202500:00 | – | cnnvd |
 | CVE-2025-66546 | 5 Dec 202516:49 | – | cve |
 | EUVD-2025-201445 | 5 Dec 202516:49 | – | euvd |
 | Calendar app allowed booking appointments without the generated token | 5 Dec 202508:00 | – | nextcloud |
 | Nextcloud: Calendar app allowed booking appointments without the generated token | 29 Jul 202505:54 | – | hackerone |
 | CVE-2025-66546 | 5 Dec 202516:49 | – | mend |
 | CVE-2025-66546 | 5 Dec 202517:16 | – | nvd |
 | PT-2025-49289 | 5 Dec 202500:00 | – | ptsecurity |
10
[
{
"vendor": "nextcloud",
"product": "security-advisories",
"versions": [
{
"version": ">= 6.0.0-rc.1, < 6.0.1",
"status": "affected"
},
{
"version": ">= 5.0.0-rc.1, < 5.5.6",
"status": "affected"
},
{
"version": ">= 3.0.0-beta1, < 4.7.19",
"status": "affected"
}
]
}
]Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
05 Dec 2025 16:49Current
CVSS 3.13.3
EPSS0.00139
SSVC