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CVE-2025-66548

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CVE-2025-66548

Published: Dec 5, 2025

Modified: Dec 8, 2025

PUBLISHED

CVSS v3.1

3.3

LOW

Description

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.12.7, 1.14.4, and 1.15.1, file extension can be spoofed by using RTLO characters, tricking users into download files with a different extension than what is displayed. This vulnerability is fixed in 1.12.7, 1.14.4, and 1.15.1.

VendorProductVersions

nextcloud

security-advisories

affected
>= 1.15.0-beta.1, < 1.15.1
affected
>= 1.14.0-beta.1, < 1.14.4
affected
< 1.12.7

Weaknesses (CWE)

CWE-116

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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