CVE-2018-3762

MEDIUM

Nextcloud Server < 12.0.8 - Improper Access Control via File Preview Request

Title source: llm

Description

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.

References (2)

Core 2

Core References

Broken Link, Vendor Advisory x_refsource_confirm

https://nextcloud.com/security/advisory/?id=nc-sa-2018-002

Third Party Advisory x_refsource_misc

https://hackerone.com/reports/358339

Scores

CVSS v3 4.3

EPSS 0.0030

EPSS Percentile 53.7%

Attack Vector NETWORK

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

Details

CWE

CWE-284 CWE-281

Status published

Products (1)

nextcloud/nextcloud_server < 12.0.8

Published Jul 05, 2018

Tracked Since Feb 18, 2026