CVE-2023-25821 MEDIUM

CVE-2023-25821: Nextcloud download permissions can be changed by resharer

Vendor Nextcloud
Product security-advisories
Weakness CWE-284
Published February 24, 2023
Last update March 10, 2025
View on NVD All CVEs

CVSS base score

5.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Nextcloud is an Open Source private cloud software. Versions 24.0.4 and above, prior to 24.0.7, and 25.0.0 and above, prior to 25.0.1, contain Improper Access Control. Secure view for internal shares can be circumvented if reshare permissions are also given. This issue is patched in versions 24.0.7 and 25.0.1. No workaround is available.

Key dates

02Disclosure timeline

February 24, 2023 CVE published
March 10, 2025 Record updated