CVE-2025-66548

CWE-1162 documents2 sources
Severity
5.5MEDIUM
EPSS
0.0%
top 96.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud Security-advisoriesNextcloud Deck
Timeline
PublishedDec 5

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitability: 1.8 | Impact: 1.4

Affected Packages2 packages

▶NVDnextcloud/deck1.14.0 — 1.14.4+2
▶CVEListV5nextcloud/security-advisories< 1.12.7+2

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
Nextcloud Deck app allows to spoof file extensions by using RTLO characters↗2025-12-05
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