CVE-2023-25161: Nextcloud Server

Medium severity, CVSS 5.3. EPSS: 0.7% chance of exploitation in the next 30 days.

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server and Nextcloud Enterprise Server prior to versions 25.0.1 24.0.8, and 23.0.12 missing rate limiting on password reset functionality. This could result in service slowdown, storage overflow, or cost impact when using external email services. Users should upgrade to Nextcloud Server 25.0.1, 24.0.8, or 23.0.12 or Nextcloud Enterprise Server 25.0.1, 24.0.8, or 23.0.12 to receive a patch. No known workarounds are available.

Affected products

• Nextcloud Nextcloud Server: before 23.0.12 (fixed in 23.0.12); from 24.0.0, before 24.0.8 (fixed in 24.0.8); version 25.0.0 only

Published 2023-02-13. Last modified 2026-06-17.