CVE-2023-25821 — Improper Access Control in Server

CWE-284 — Improper Access Control2 documents2 sources
Severity
7.5HIGHNVD
CNA5.7
EPSS
0.2%
top 63.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud ServerNextcloud Security-advisories
Timeline
Latest updateFeb 24
PublishedFeb 25

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDnextcloud/nextcloud_server24.0.4 — 24.0.7+1
▶CVEListV5nextcloud/security-advisories>= 24.0.4, < 24.0.7, >= 25.0.0, < 25.0.1+1

Patches

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

🔴Vulnerability Details

1
CVEList
Nextcloud download permissions can be changed by resharer↗2023-02-24
▶
CVE-2023-25821 — Improper Access Control in Server | cvebase