CVE-2025-66511 Nextcloud Calendar app used predictable proposal participant tokens
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | Nextcloud Calendar Insufficient Randomness | 19 Mar 202600:00 | – | bdu_fstec |
 | CVE-2025-66511 | 5 Dec 202514:50 | – | circl |
 | NextCloud Calendar security feature vulnerability | 5 Dec 202500:00 | – | cnnvd |
 | Nextcloud Calendar Security Feature Issue Vulnerability | 10 Dec 202500:00 | – | cnvd |
 | CVE-2025-66511 | 5 Dec 202516:42 | – | cve |
 | EUVD-2025-201444 | 5 Dec 202516:42 | – | euvd |
 | Calendar app used predictable proposal participant tokens | 5 Dec 202508:08 | – | nextcloud |
 | Nextcloud: Predictable proposal participant tokens enable unauthorized access and vote submission | 15 Oct 202516:45 | – | hackerone |
 | CVE-2025-66511 | 5 Dec 202516:42 | – | mend |
 | CVE-2025-66511 | 5 Dec 202517:16 | – | nvd |
10
[
{
"vendor": "nextcloud",
"product": "security-advisories",
"versions": [
{
"version": ">= 6.0.0-rc.1, < 6.0.3",
"status": "affected"
}
]
}
]Data
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05 Dec 2025 16:42Current
CVSS 3.14.8
EPSS0.00295
SSVC