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Status published
Medium
CVE-2023-25821
Nextcloud download permissions can be changed by resharer
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
nextcloud
View all reports →Affected Software
security-advisories
Vulnerable Versions:
>= 24.0.4, < 24.0.7, >= 25.0.0, < 25.0.1
Timeline
Official Publish:
February 24th, 2023
Last Modified:
March 10th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N