CVE-2024-52523: Nextcloud Server

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Nextcloud Server is a self hosted personal cloud system. After setting up a user or administrator defined external storage with fixed credentials, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active session of a user. It is recommended that the Nextcloud Server is upgraded to 28.0.12, 29.0.9 or 30.0.2 and Nextcloud Enterprise Server is upgraded to 25.0.13.14, 26.0.13.10, 27.1.11.10, 28.0.12, 29.0.9 or 30.0.2.

Affected products

• Nextcloud Nextcloud Server: from 25.0.0, before 25.0.13.14 (fixed in 25.0.13.14); from 26.0.0, before 26.0.13.10 (fixed in 26.0.13.10); from 27.0.0, before 27.1.11.10 (fixed in 27.1.11.10); from 28.0.0, before 28.0.12 (fixed in 28.0.12); from 29.0.0, before 29.0.9 (fixed in 29.0.9); from 30.0.0, before 30.0.2 (fixed in 30.0.2)

Published 2024-11-15. Last modified 2026-06-17.