EUVD-2025-201443
2025-12-05
[email protected]
5.7
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Lifecycle Timeline
5
Analysis Generated
Mar 15, 2026 - 17:08 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 17:08 euvd
EUVD-2025-201443
Patch Released
Mar 15, 2026 - 17:08 nvd
Patch available
PoC Detected
Dec 10, 2025 - 14:13 vuln.today
Public exploit code
CVE Published
Dec 05, 2025 - 17:16 nvd
MEDIUM 5.7
Description
Nextcloud Calendar is a calendar app for Nextcloud. Prior to 4.7.17 and 5.2.4, when a malicious user creates a calendar event with a crafted attachment that links to a download link of a file on the same Nextcloud server, the file would be downloaded without the user confirming the action. This vulnerability is fixed in 4.7.17 and 5.2.4.
Analysis
A security vulnerability in Nextcloud Calendar (CVSS 5.7). Risk factors: public PoC available. Vendor patch is available.
Technical Context
Vulnerability type not specified by vendor. Affects Nextcloud Calendar.
Affected Products
['Nextcloud Calendar']
Remediation
Apply the vendor-supplied patch immediately.
Priority Score
49
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +28
POC: +20
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External POC / Exploit Code
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Destination URL
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