CVE-2022-41970

LOW

Nextcloud Server < 24.0.7 and 25.0.1 - Improper Access Control via Preview Image Download

Title source: llm
STIX 2.1

Description

Nextcloud Server is an open source personal cloud server. Prior to versions 24.0.7 and 25.0.1, disabled download shares still allow download through preview images. Images could be downloaded and previews of documents (first page) can be downloaded without being watermarked. Versions 24.0.7 and 25.0.1 contain a fix for this issue. No known workarounds are available.

References (3)

Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/nextcloud/server/pull/34788
Permissions Required, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1745766

Scores

CVSS v3 2.6
EPSS 0.0015
EPSS Percentile 34.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-284 CWE-863
Status published
Products (2)
nextcloud/nextcloud_server 25.0.0 (2 CPE variants)
nextcloud/nextcloud_server 24.0.0 - 24.0.7 (2 CPE variants)
Published Dec 01, 2022
Tracked Since Feb 18, 2026