CVE-2023-25820

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server software. In Nextcloud Server versions 25.0.x prior to 25.0.5 and versions 24.0.x prior to 24.0.10 as well as Nextcloud Enterprise Server versions 25.0.x prior to 25.0.4, 24.0.x prior to 24.0.10, 23.0.x prior to 23.0.12.5, 22.x prior to 22.2.0.10, and 21.x prior to 21.0.9.10, when an attacker gets access to an already logged in user session they can then brute force the password on the confirmation endpoint. Nextcloud Server should upgraded to 24.0.10 or 25.0.4 and Nextcloud Enterprise Server should upgraded to 21.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, or 25.0.4 to receive a patch. No known workarounds are available.

Affected products

Alt Linux, Nextcloud Enterprise Server, Nextcloud Server

Nextcloud Nextcloud Server

< 21.0.9, 22.2.10.10, 23.0.12.5, 24.0.10, 25.0.4

Fix

Available

CVSS 3.1

7.8 HIGH

EPSS

0.2% (15th percentile)

Weakness

CWE-307

NVD status

Modified

Published

2023-03-22

No exploit for CVE-2023-25820 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.